Fix It

The water pump in a 1990 Ford F-150 Lariat keeps the engine cool by circulating water and coolant throughout the engine. A malfunctioning water pump can cause the engines temperature to increase, even when the radiator has sufficient coolant. This may eventually result in permanent damage to the engine. The pump attaches to the timing chain cover on the front of the engine block. You will need to drain the cooling system when replacing the pump.

Instructions

1

Position a sealable container under the radiator drain hole and remove the drain plug. Wait for the coolant to drain into the container. Seal the container for later use. Replace the drain plug.

2

Remove the mounting bolts for the cooling fan shroud with a socket wrench. Disconnect the shroud from the radiator. Detach the radiator hose, bypass hose and heater hose from the water pump. Disconnect the drive belt and the cooling fan assembly, including the fan spacer and pulley.

3

Remove the alternator mounting bolts with a socket wrench, and move the alternator out of the way to access the water pump. You may also need to remove the power steering pump bracket if the vehicle is so equipped. Disconnect the mounting bolts for the water pump and detach the pump from the timing chain cover. Discard the water pump gasket.

4

Apply a thin layer of sealer to the new gasket. Install the new pump and gasket to the timing chain cover. Tighten the mounting bolts for the water pump to 18 foot-pounds with a torque wrench.

5

Repeat steps two and three in reverse order to complete the installation of the new water pump. Replace the coolant in the radiator.

The Eldorado was a line of luxury cars made by Cadillac from 1953 to 2002. The 1994 model is an eighth generation Eldorado, which includes the 1992 through 2002 models. This vehicle has an oil pump that circulates oil throughout the engine to provide lubrication to the moving parts. The only engine choice for a 1994 Cadillac Eldorado is an 8-cylinder 4.6-liter Northstar engine. The oil pump for this engine is attached to the front of the crankcase, and is accessible from the engine compartment.

Instructions

1

Allow the vehicle to sit overnight without running to ensure the engine is cold. Hot oil can cause severe burns.

2

Remove the screws that attach the front cover of the oil pump to the front of the engine with a socket wrench. Disconnect the front cover from the engine.

3

Loosen the three bolts that connect the oil pump to the engine with a socket wrench. Remove the oil pump and its spacer from the engine.

4

Mount the oil pump spacer to the new oil pump. Fasten the new oil pump to the engine with the three mounting bolts. Tighten the mounting bolts with a socket wrench.

5

Connect the front cover for the oil pump to the engine with the retaining screws. Tighten the screws with a socket wrench. Start the engine and check for oil leaks.

The Accord is a mid-size car manufactured by Honda since 1976 and is still in production as of 2010. The 1990 model has a four-cylinder, 2.2L engine with electronic fuel injection. This requires the fuel pump to deliver fuel to the injectors under high pressure. The fuel pump in the 1990 Honda Accord attaches directly to the fuel tank, so you must disconnect the fuel tank to replace the fuel pump.

Instructions

1

Disconnect the cable to the negative terminal of the battery with a socket wrench, and loosen the filler cap for the fuel tank. Locate the fuel pressure release valve on the fuel rail. Hold the banjo bolt for the release valve with a 6 mm closed wrench. Wrap a shop rag around the service bolt on top of the banjo bolt. Loosen the service bolt by one complete turn with an open-end wrench to relieve the pressure in the fuel system. Tighten the service bolt to 9 foot-pounds with a torque wrench.

2

Block the front wheels and raise the rear of the vehicle on jack stands. Loosen the drain bolt of the fuel tank and drain the fuel into a container approved for gasoline. Slide the clamps on the fuel hoses back and disconnect the fuel hoses from the fuel tank. Support the fuel tank with a floor jack and remove the nuts on the fuel tank retaining straps with a socket wrench. Lower the floor jack and remove the fuel tank from the vehicle. Disconnect the mounting bolts for the fuel pump with a socket wrench and remove the fuel pump from the fuel tank.

3

Install the new fuel pump onto the fuel tank ensuring that you seat it into its proper position. Tighten the mounting bolts evenly to a torque of 48 inch-pounds with a torque wrench. Connect the fuel tank and tighten the nuts on the restraining strap to 27 foot-pounds with a torque wrench.

4

Remove the service bolt on the fuel pressure regulator on the fuel rail. Disconnect the hose from the fuel pressure regulator and plug the open end of the hose. Attach a fuel pressure gauge to the pressure regulator.

5

Start the engine and note the reading on the fuel pressure gauge while the engine is idling. The fuel pressure in a 1990 Honda Accord should be in the range of 36 to 41 psi. Check for a clogged or pinched fuel return hose if the pressure is too high. Look for leaks in the fuel line, a faulty pressure regulator or a clogged fuel filter if the pressure is too low.

6

Wrap a shop rag around the fitting for the pressure gauge. Loosen the fitting slowly, until you can remove the pressure gauge. Place new washers on the service bolt and tighten it to 9 foot-pounds with a torque wrench.

The Ford Ranger is a compact pickup truck manufactured by the Ford Motor Company since 1983. The 1991 model has a choice of several engines, including a four-cylinder, 2.3-liter engine. The oil pump circulates oil through the engine to keep it lubricated. The oil pump in a 1991 Ford Ranger with a 2.3-liter engine is on the front of the engine and is driven by the timing belt.

Instructions

1

Disconnect the cable from the negative battery terminal with a socket wrench to prevent you from starting the engine inadvertently. Remove the timing belt from its pulley and detach the electrical connector for the camshaft position sensor on the camshaft.

2

Insert a pry bar through the hole in the oil pump sprocket to prevent it from turning. Remove the mounting bolt for the oil pump sprocket with a socket wrench and disconnect the sprocket.

3

Remove the mounting bolt for the camshaft position sensor with the socket wrench and disconnect the sensor. Remove the four mounting bolts for the oil pump and detach the oil pump from the front of the engine. Discard the gasket for the oil pump.

4

Clean the mating surfaces on the oil pump gasket with a shop rag and lubricate the new gasket with clean engine oil. Install the new oil pump and gasket and torque the mounting bolts for the oil pump to between 90 and 123 inch-pounds with a torque wrench.

5

Attach the camshaft position sensor and torque its mounting bolts to between 45 and 61 inch-pounds with the torque wrench. Install the oil pump sprocket and tighten its mounting bolts to between 30 and 40 foot-pounds.

6

Connect the electrical connector for the camshaft position sensor and install the timing belt. Reattach the cable to the negative battery terminal with the socket wrench. Add 8 ounces of engine oil to prime the oil pump.

Replacing the washer fluid pump in a 1998 Pontiac Grand Prix can help increase visibility through your windshield. The process of replacing the pump should take no more than a half-hour, and you can purchase the tools and materials your need at an auto parts store.

Instructions

1

Open the hood. Remove the washer fluid tank bolts with a 3/8-inch drive ratchet and socket.

2

Pull the entire washer bottle assembly out from under the hood. Detach the hoses from the bottle. Do this gently, so as not to stretch or rip the lines.

3

Remove the old washer fluid pump by pulling it upward toward the top of the washer fluid bottle. The pump is locked in place by the washer fluid bottle itself.

4

Install the new washer fluid pump onto the bottle.

5

Reinstall the washer fluid bottle hoses. Reattach the washer fluid reservoir to the vehicle.

The Dodge RAM is a series of pickup trucks in a variety of carrying capacities and trim levels. The 1997 models use multi-port fuel injection to deliver fuel to the engine under high pressure. The fuel pump in these vehicles is part of a module that also includes the fuel gauge sending unit and float. The fuel pump module in a 1997 Dodge RAM is attached to the top of the fuel tank, so you must disconnect the fuel tank to install a new fuel pump.

Instructions

1

Disconnect the negative battery cable with a socket wrench to ensure you dont inadvertently attempt to start the engine. Open the filler cap for the fuel tank to relieve the pressure in the fuel tank and remove the cap from the fuel pressure port on the fuel rail.

2

Attach a fuel pressure gauge to the fuel pressure port and place the open end of the pressure gauges hose into a gasoline container. Open the pressure gauge to relieve the fuel pressure in the fuel system. Remove the pressure gauge from the fuel pressure port and replace the cap.

3

Pump the fuel from the fuel tank into a gasoline container with a hose. Raise the vehicle with a floor jack and support it with jack stands. Disconnect the fuel line and electrical connection from the fuel gauge unit. Remove the mounting screws for the filler tube assembly with a socket wrench and disconnect the filler tube from the fuel tank.

4

Support the fuel tank with a transmission jack and remove the nuts for the fuel tanks mounting straps. Lower the tank slightly with the transmission jack so you can detach the fill hose and vent hose to the fuel tank. Remove the electrical connections for the fuel tank. Disconnect the evaporative emissions line and the fuel supply line. Remove the fuel tank from the vehicle.

5

Disconnect the fuel line to the fuel pump module. Clean the fuel tank around the fuel pump module with the shop towel to ensure that debris doesnt fall into the fuel tank when you replace the fuel pump.

6

Turn the locking ring for the fuel pump module counterclockwise with a socket wrench. Remove the locking ring from the fuel pump module, and clean the fuel filter at the bottom of the fuel pump module. Discard the gasket for the fuel pump module.

7

Install the new fuel pump module and its gasket by performing steps three through six in reverse. Tighten the locking ring for the fuel pump module to 40 ft-lbs. with a torque wrench. Fill the fuel tank with fuel and connect the negative terminal for the battery with a socket wrench.

The 1979 Cadillac Eldorado had an eight-cylinder 5.7-lilter engine with fuel injection that required a low-pressure fuel system. The fuel pump in the 1979 Cadillac Eldorado pressurizes fuel to between 9 and 13 pounds per square inch. The fuel pump in this vehicle attaches to the fuel tank, requiring the removal of the fuel tank to install the fuel pump.

Instructions

1

Disconnect the cable on the negative terminal for the battery with a socket wrench to prevent the unintentional discharge of electricity. Open the door to the fuel tank filler, and disconnect the electrical connector for the fuel sending unit.

2

Remove the protective cap for the pressure fitting on the fuel line, and connect G.M. tool no. J-5420 to the pressure fitting. Wrap a shop rag around the pressure fitting, and slowly open the valve on the tool to relieve the pressure in the fuel system. Disconnect the tool from the pressure fitting, and replace the protective cap.

3

Siphon the fuel from the fuel tank into a gasoline container. Raise and support the rear of the vehicle with jack stands, and disconnect the ground wire for the fuel sending unit with a screwdriver. Detach the fuel lines from the fuel tank, and support the fuel tank with a wooden block on top of a jack. Remove the screws for the support straps of the fuel tank. Lower the fuel tank slightly, so you can disconnect the electrical connector for the fuel pump. Lower the fuel tank completely, and remove it from the vehicle.

4

Remove the nuts that fasten the fuel gauge unit to the fuel tank with a socket wrench. Turn the locking ring for the fuel pump counterclockwise with a brass punch and hammer. Remove the locking ring, and lift the fuel pump from the fuel tank.

5

Install the new fuel pump by performing steps 1 through 4 in reverse order. Tighten the screws for the fuel tank retaining strap to 25 ft. lbs. with a torque wrench. Start the engine, and check for fuel leaks.

Several things can cause a fuel pump to begin to fail, such as electrical problems which can prevent an adequate amount of voltage from flowing through the circuit that supplies power to the fuel pump. The failing fuel pump can then cause other problems that vehicle owners should be aware of.

Vapor Lock

Residual fuel pressure should remain in a vehicles fuel system even if a fuel pump has quit running. However, a leaky fuel pump can allow the system to lose pressure rapidly. In hot temperatures, a vehicle can experience vapor lock if residual fuel pressure gets too low.

Pressure

After checking a fuel pumps pressure specifications, a test can then be performed to compare that with the current pressure being produced by the pump. A pressure reading that isnt high enough often indicates a weak and failing fuel pump.

Tests

There are several types of test that can be performed on a fuel pump to see if its failing, such as a dead pressure test which reveals the total output pressure of the fuel pump. Another test is called a fuel volume test which is helpful in making sure the fuel pump is supplying enough fuel to meet the engines needs.

The Cummins 5.9-liter engine has six cylinders, and it typically has a turbocharger. The most common application for this engine is in heavy Dodge trucks made after 1989. The Cummins 5.9-liter engine uses diesel fuel and has fuel injection, which requires an injection pump. This pump keeps the fuel in the fuel rail at the correct pressure until it enters the engine through an intake cylinder valve. The installation procedure for an injection pump is similar for all full-size Dodge trucks made from 2000 to 2005.

Instructions

1

Detach the cables from the negative battery terminals with a socket wrench. Disconnect the bracket for the throttle linkage and remove the throttle linkage. Remove the fuel drain manifold and detach the fuel lines from the injection pump. Disconnect the fuel air control tube and electrical connector for the fuel shutoff valve. Remove the bracket and the oil fill tube from the injection pump.

2

Cover the opening in the injection gear cover with a shop towel to keep parts out of the gear housing. Disconnect the retaining nut and washer for the injection gear with a socket wrench.

3

Turn the crankshaft clockwise by hand until the key way on the shaft of the fuel pump points straight down. Push the top dead center pin on the crankshaft as you turn the crankshaft clockwise. Stop turning the crankshaft when the pin drops into the timing hole on the crankshaft gear.

4

Loosen the lock screw on the injection pump with a socket wrench, and remove its washer. Tighten the locks screw to 22 foot-pounds with a torque wrench to lock the drive shaft in place.

5

Remove the drive gear for the injection pump from the crankshaft and unfasten the mounting nuts for the injection pump. Remove the injection pump and its gasket from the engine. Clean the mounting surfaces for the gasket with a shop towel.

6

Install the new injection pump and its gasket to the engine. Tighten its mounting nuts by hand, so that the pump can still move freely within its slots. Connect the drive gear for the injection pump to the crankshaft. Tightened the retaining nut for the drive gear to between 11 and 15 foot-pounds with a torque wrench.

7

Turn the injection pump counterclockwise to seat the drive gear for the injection pump. Tighten the mounting nuts for the injection pump to 18 foot-pounds with a torque wrench. Loosen the lock screw for the injection pump with a socket wrench, so you can install the washer. Tighten the lock screw to 13 foot-pounds and remove the top dead center pin from the timing hole.

8

Install the bracket for the injection pump and tighten the retaining bolt for the injector gear to 48 foot-pounds with a torque wrench. Replace the oil filler tube and the electrical connector for the fuel shutoff valve. Install the fuel air control tube with a socket wrench and attach the fuel lines to the injection pump. Connect the fuel drain manifold and throttle linkage. Attach the cable for the negative battery terminal.

9

Turn the bleed bolt on the fuel pipe counterclockwise with a socket wrench. Push the button on the fuel transfer pump to bleed the air from the fuel system. Tighten the bleed bolt to 72 inch-pounds with a torque wrench.

The PT Cruiser is a compact car with retro styling made by Chrysler from 2000 to 2010. The 2001 model has a pump that circulates water and coolant throughout the engine compartment to keep the engine cool while it is running. The water pump in a 2001 PT Cruiser is a mechanical belt-driven pump that receives its power from the engine. The replacement of the the water pump in a 2002 PT cruiser also requires you to drain the cooling system.

Instructions

1

Allow the car to sit overnight to ensure the engine is cool. Place a container under the radiator and open the drain cock of the radiator. Wait for the coolant in the radiator to drain into the container. Replace the radiator drain cock.

2

Disconnect the cable to the negative battery terminal with a socket wrench to ensure that you dont start the engine inadvertently. Remove the timing belt and sprockets for the camshaft. Disconnect the cover for the rear timing belt.

3

Remove the mounting bolts for the water pump with a socket wrench, and disconnect the water pump. Discard the old O-rings for the water pump.

4

Apply a thin layer of dielectric grease to the new O-ring. Place the new O-ring into the groove for the water pump, and ensure that the O-ring is properly seated. Install the new water pump and tighten the mounting bolts for the water pump to 105 inch lbs. with a torque wrench.

5

Connect the cover for the route timing belt with a socket wrench. Attach the sprockets for the camshaft and install the timing belt. Connect the cable to the negative battery terminal with a socket wrench. Fill the radiator with coolant and start the engine. Check the cooling system for leaks and repair as necessary.

The Nissan Xterra is a compact sport utility vehicle intended for off-road use. Nissan began production of this product line in 2000, and the most recent generation of the Xterra includes 2005 and later models. The only engine available for the Nissan Xterra is a six-cylinder 4.0-liter engine, which has the oil pump on the front of the crankcase. You may need to replace the oil pump if your engine is showing unexpected wear, even though the oil is at its proper level.

Instructions

1

Remove the cable on the negative battery terminal with a socket wrench so that you dont start the engine during the procedure. Place a container under the oil drain in the crankcase and open the oil drain. Allow the oil to drain into the container and replace the plug for the oil drain.

2

Place a second container under the drain for the radiator and remove the drain plug for the radiator with a socket wrench. Wait for the coolant to drain into the container and replace the radiator drain plug.

3

Remove the mounting bolts for the upper and lower oil pans with a socket wrench. Detach both oil pans from the crankcase.

4

Disconnect the mounting bolts on the case for the front timing chain with a socket wrench. Remove the front timing chain.

5

Remove the mounting bolts for the oil pump cover with a socket wrench and detach the oil pump cover. Disconnect the bolts for the oil pump and remove the oil pump.

6

Install the new oil pump and fasten the mounting bolts with a socket wrench. Attach the oil pump cover. Connect the front timing chain and install the cover for the front timing chain.

7

Add a layer of sealant to the mounting surfaces of the oil pans and install the oil pans. Allow the sealant to cure for 30 minutes before you add oil.

8

Fill the crankcase with the proper amount of oil and coolant. Start the engine and check for oil and coolant leaks.

Chrysler manufactures trucks under the Dodge brand, including compact trucks, midsize trucks and full-size pickups. The procedure for changing the oil pump on a Dodge truck depends upon the type of engine in the truck. Dodge trucks have a variety of engines, with a six-cylinder, 3.9-liter engine being typical for a 96 Dakota. The oil pump for this engine is attached to the rear bearing cap, which is accessible from beneath the vehicle.

Instructions

1

Detach the cable from the negative battery terminal with a socket wrench. Raise the vehicle with a jack and support it on jack stands. Place a drain pan below the oil drain. Remove the plug for the oil drain with a socket wrench. Allow the oil to drain into the pan and replace the drain plug.

2

Disconnect the mounting bolts for the oil pan with a socket wrench. Remove the drain pan and discard the gasket. Remove the screen for the oil pump with a socket wrench. Disconnect the bolts that fasten the oil pump to the rear main bearing cap. Detach the oil pump from the vehicle.

3

Pour clean engine oil into the intake of the new oil pump. Turn the driveshaft of the oil pump manually until the oil exits the pressure port of the oil pump. Continue turning the driveshaft until no air bubbles are present in the oil.

4

Hold the oil pump against the rear main bearing cap and tighten the mounting bolts to 130 foot-pounds with a torque wrench. Connect the screen to the oil pump. Mount a new gasket to the oil pan and install the oil pan.

5

Lower the vehicle and connect the cable to the negative battery terminal with a socket wrench. Check the vehicle for oil leaks.

A water pump on a 1997 Chevrolet Blazer passes coolant through the radiator to the engine. The coolant temperature is lowered in the radiator by air passing through the grill and fan. At that point, the coolant is passed through the water pump and into the engine to cool the engines temperature. When the water pump breaks, water cant get to the engine. This will make the engine overheat and could cause serious problems if not taken care of immediately. Replacing a water pump is something that can be done at home in a garage in about an hour.

Instructions

1

Pull your car into the garage, and turn it off. Open the hood, and take off the negative ("-") battery cable.

2

Put a bucket under the radiator, and position it so that its centered under the drain plug. Pull the drain plug, and let all of the coolant drain out. When there is no more coolant in the truck, reconnect the drain plug.

3

Remove the bolts connecting the radiator shroud to the frame. Do this by getting the right size socket and turning the bolts counterclockwise. When the bolts are off, the shroud will come off easily by hand.

4

Check the fan shroud for a diagram of the routing of the serpentine belt. If there is no diagram, grab a piece of scrap paper and pen and draw a diagram so that you will know how to put the serpentine belt back on when your putting the new water pump on.

5

Find the right-sized socket that fits the pulley tensioner bolt, and loosen it just enough to remove the belt from the water pump pulley.

6

Take the radiator and heater hoses off of the water pump. Squeeze the clamp with a pair of needle-nose pliers so that it gets bigger, and move it down the hose. Pull the hose from the water pump. The heater hose is located on top of the water pump, and the radiator hose is on the bottom of the water pump.

7

Remove the bolts holding the water pump to the engine. You need to turn them counterclockwise. If you cant remove the water pump after you have removed the bolts, then take a rubber hammer and tap on the pump until it becomes loose.

8

Put paint thinner on a rag, and clean off any of the old gasket from the engine. This will ensure a tight seal of the new gasket.

9

Put some RTV sealant on the new gasket, and put the gasket on the new water pump. Put the new water pump back into the engine, and finger tighten the bolts. Use your torque wrench to make the bolts tight.

10

Reinstall the radiator and heater hoses on to the water pump. The radiator hose goes on the bottom and the heater hose gets attached to the top of the water pump.

11

Put the serpentine belt back onto the water pump. Make sure that you check your diagram to see that you are putting the belt on correctly. Turn the tensioner bolt clockwise while using a pry bar to pull the water pump toward you.

12

Reinstall the radiator shroud by turning the bolts clockwise.

13

Reconnect the negative battery cable.

14

Turn the car on, and let it run until it gets to running temperature. That way any air in the lines will escape out of the open radiator. When you are satisfied that there isnt any more air, then you can put the cap back on the radiator; make sure that the cap is tight.

The Power Stroke engines are a series of diesel engines that Ford manufactures for its heavy trucks. Ford made the 7.3-liter Power Stroke engine from 1995 to 2002, primarily for its line of Super Duty trucks. The engines in these vehicles use fuel injection, requiring a high-pressure fuel system to deliver fuel to the engine. The fuel pump for a 7.3-liter Power Stroke engine is on the undercarriage of the vehicle.

Instructions

1

Disconnect the cables on both negative battery terminals with a socket wrench to prevent the inadvertent discharge of fuel during the fuel pump replacement. Open the drain valve for the fuel filter with a socket wrench to relieve the fuel pressure. Replace the drain valve.

2

Raise the vehicle with a jack and support it with jack stands. Disconnect the wiring harness on the back of the fuel pump next to the frame rail.

3

Remove the retaining clip from the fuel line and detach the fuel line from the fuel pump. Disconnect the retaining clip that attaches the brake lines to the fuel pump bracket.

4

Disconnect the pinch bolt from the fuel pump bracket with a socket wrench. Push the bracket open and remove the fuel pump.

5

Place the new fuel pump in the fuel pump mounting bracket. Fasten the pinch bolt to the fuel pump mounting bracket and tighten it to 13 ft. lbs. with a torque wrench. Attach the brake lines to the mounting bracket with the retaining clip. Connect the fuel line to the fuel pump.

6

Attach the wiring harness to the fuel pump and lower the vehicle. Fasten the cables for the negative battery terminals with a socket wrench. Start the vehicle and check for leaks in the fuel system.

The Chevrolet S-10 Blazer was a mid-size SUV manufactured from 1983 to 2005, with the last major redesign occurring in 1995. The 2004 Blazer had a 6-cylinder 4.3L engine with multi-port fuel injection requiring a high-pressure electric fuel pump. The procedure for replacing the fuel pump is the same in all versions of this vehicle. The fuel pump is part of the fuel-sending unit on the fuel tank, so you must remove the fuel tank in order to replace the fuel pump.

Instructions

1

Disconnect the cable to the negative terminal of the battery with a socket wrench. Install Fuel Pressure Gauge J 34730-1A to the fuel pressure connection on the fuel rail. Loosen the fill cap for the fuel tank, and open the valve on the fuel pressure gauge. Disconnect the fuel pressure gauge from the fuel pressure connection.

2

Drain the fuel tank and support it with jack stands. Remove the filler neck for the fuel tank. Disconnect the fuel tank shield and the retaining straps for the fuel tank. Detach the fuel lines and electrical connector from the fuel pump. Disconnect the fasteners for the fuel tank with a socket wrench and lower the fuel tank from the vehicle with the jack stands.

3

Turn the locking ring on the fuel tank counter-clockwise with a spanner wrench. Remove the locking ring and detach the fuel pump from the fuel-sending unit. Discard the O-ring that is on the fuel tank.

4

Install the new O-ring on the fuel tank and lower the fuel-sending unit into the fuel tank. Avoid damaging the fuel strainer as this can restrict fuel flow. Turn the locking ring clockwise with a spanner wrench. The cam-locking ring will lock into position under the locking tabs.

5

Connect the fuel tank to the vehicle and tighten the fasteners to 33 ft. lbs. with a torque wrench. Attach the fuel lines and electrical connector for the fuel pump. Fasten the restraining straps and shield for the fuel tank. Connect the filler neck for the fuel tank. Connect the cable to the batterys negative terminal. Start the engine check for fuel leaks.

The purpose of the oil pump in a car is to circulate oil through the engine as a lubricant between moving parts. The Volvo S70 is a mid-size luxury sedan that was manufactured by Volvo from 1998 to 2000. It most often had a five-cylinder 2.4-liter engine with the oil pump attached to the front of the engine. The replacement of the oil pump on a Volvo S70 requires the removal of additional engine components to access the oil pump.

Instructions

1

Disconnect the negative battery cable with a socket wrench to prevent the engine from starting. Remove the stabilizer brace for the engine. Disconnect the expansion tank and servo reservoir.

2

Remove the accessory drive belt by turning the belt tensioner clockwise with special tool 999 7109. Disconnect the front cover for the timing belt with a socket wrench.

3

Loosen the lug nuts on the right front wheel with a lug wrench. Raise the vehicle with a jack and support it on jack stands. Remove the right front wheel.

4

Disconnect the upper cover for the camshaft with a socket wrench and remove the timing belt. Disconnect the center nut for the vibration damper and remove the vibration damper. Remove the pulley for the crankshaft timing gear and the front crankshaft seal.

5

Remove the mounting bolts for the oil pump with special tool 999 5455. Install the new oil pump and press it with the crankshaft nut to fully seat the oil pump. Tighten the mounting bolts to 88 inch-pounds with tool 999 5455 and a torque wrench.

6

Complete the oil pump installation by performing steps one through four in reverse order. Tighten the center nut for the vibration damper to 133 foot-pounds with a torque wrench. Tighten the bolt for the engine bracket bolt to 59 foot-pounds. Start the Volvo S70 engine and check for oil leaks.

The Acura 3.5 RL, also known as the Acura Legend, is a mid-level luxury car manufactured by Honda from 1996 to 2004. It had a six-cylinder 3.5-liter engine with multi-port fuel injection. This type of fuel injection requires the fuel pump to deliver highly pressurized fuel to the fuel injectors. The fuel pump in the Acura 3.5 RL is on top of the fuel tank and is accessible from the rear seat of the vehicle.

Instructions

1

Disconnect the negative battery cable with a socket wrench to prevent sparking. Open the filler cap for the fuel tank to relieve the pressure in the fuel tank.

2

Wrap a shop towel around the banjo bolt on top of the fuel filter. Hold the fuel filter with an open-end wrench. Loosen the banjo bolt slowly by one complete turn with a box-end wrench to relieve the pressure in the fuel system. Tighten the banjo bolt to its original position with the box-end wrench.

3

Remove the rear seat cushion and open the access panel on the floor of the passenger compartment. Disconnect the electrical connector from the fuel pump.

4

Remove the mounting nuts for the fuel pump with a socket wrench. Lift the fuel pump from the fuel tank.

5

Place the new fuel pump into the fuel tank and fasten the mounting bolts with a socket wrench. Attach the electrical connector for the fuel pump. Close the access panel and replace the rear seat cushion. Reconnect the negative battery cable.

The Dodge Caravan is a family minivan made by Chrysler since 1984. The Grand Caravan has a longer wheelbase than the Caravan and most often has a 6-cylinder, 3.3-liter engine. The water pump in the 2003 Dodge Grand Caravan is attached to the front of the engine and receives power from the engine with a belt and pulley. The replacement of the water pump in this vehicle also requires you to drain the radiator.

Instructions

1

Allow the engine to cool completely to ensure the coolant will not cause injury. Remove the negative battery cable with a socket wrench to prevent anyone from starting the engine inadvertently.

2

Place a drain pan beneath the drain hole for the radiator. Remove the radiator drain plug to drain the coolant into the drain pan. Replace the radiator drain plug.

3

Disconnect the right splash shield from the engine with a socket wrench and remove the accessory drive belt. Unfasten the mounting bolts for the water pump pulley and position the pulley between the drive hub and the water pump. Remove the mounting bolts for the water pump and detach the water pump from the engine.

4

Install a new seal into the housing groove on the new water pump. Mount the new water pump to the engine and torque the mounting bolts to 105 in.-lbs. with a torque wrench. Fasten the mounting bolts for the water pump pulley and tighten them to 250 in.-lbs. Turn the water pump manually to ensure it rotates freely.

5

Install the accessory drive belt and right splash shield for the engine. Connect the cable for the negative battery terminal with a socket wrench. Fill the radiator with coolant and start the engine. Check and correct any leaks in the cooling system.

The Toyota MasterAce is a van that Toyota marketed as the Toyota Van in North American markets. This vehicle was available from 1982 to 1989. All versions of the Toyota Van in the United States had fuel-injected engines. The fuel pump in the 1986 Toyota Van is attached to the fuel sending unit on the fuel tank. This requires you to remove the fuel tank before you can replace the fuel pump.

Instructions

1

Remove the cable from the batterys negative terminal with a socket wrench. This will prevent you from starting the engine accidentally while you are replacing the fuel pump. Place one end of a hose into the fuel tank and the other end into a container for gasoline. Siphon as much fuel as possible from the tank.

2

Raise the vehicle with a jack and support it on jack stands. Disconnect the fuel lines and electrical wiring from the fuel tank. Support the fuel tank with a jack and disconnect the mounting bolts for the fuel tank with a socket wrench. Detach the fuel tank from the vehicle and move the fuel tank to your work area.

3

Disconnect the mounting screws for the field pump on the fuel tank with a socket wrench. Remove the mounting plate for the fuel pump. Lift the fuel pump assembly out of the fuel tank.

4

Pull the fuel pump away from its lower mounting bracket. Disconnect the nuts on the fuel pump with a socket wrench. Detach the electrical wiring from the fuel pump and fuel lines from the fuel pump. Remove and discard the rubber gasket. Release the retaining clip for the fuel pump filter and detach the filter from the fuel pump.

5

Install the new fuel pump and gasket by performing steps 2 through 4 in reverse order. Fill the tank with fuel. Connect the negative battery terminal with a socket wrench. Start the engine and check for fuel leaks.

General Motors manufactured an eight-cylinder 6.5-liter diesel engine from 1992 to 2000. This engine is typically turbocharged and appears in many heavy trucks from General Motors during this period. For example, A 6.5-liter turbocharged engine is an option for the 1994 Chevrolet 3/4-ton pickup truck. This engine has fuel injection and requires a pump to keep the fuel pressurized. The procedure for installing the fuel injection pump is similar for all full-size Chevrolet trucks made from 1988 to 1998.

Instructions

1

Disconnect the cable from the negative terminals of both batteries with a socket wrench. Remove the cooling fan and its shroud if necessary to access the intake manifold. Disconnect the intake manifold.

2

Detach the accelerator cable from the injection pump if applicable for your vehicle. You may also need to disconnect the retainer bracket for the air conditioning hose to gain access to the injection pump. Detach the fuel lines and electrical wiring from the injection pump. Plug the fuel lines with clean cloth.

3

Remove the vent hose assembly for the depression valve from the crankcase, including the oil filler tube. Detach the grommet from the oil filler tube. Turn the crankshaft clockwise to gain access to the bolts for the injection pump through the hole for the oil filler tube.

4

Disconnect the bolts that attach the front cover for the injection pump with a socket wrench. Remove the injection pump from the crankcase and discard its gasket.

5

Mount a new gasket to the new injection pump. Insert the pin on the hub of the injection pump into the hole on the driven gear for the injection pump. Install the injection pump and connect the front cover to the injection pump. Tighten the retaining nuts to the front cover to 30 ft. lbs. with a torque wrench.

6

Fasten the injection pump to the drive gear and tighten the bolts to 20 ft. lbs. with a torque wrench. Mount the grommet to the oil filler tube and install the vent hose assembly to the crankcase.

7

Remove the plugs from the fuel lines and attach the fuel lines to the injection pump. Tighten the bolts for the fuel lines to 20 ft. lbs. with a torque wrench. Connect the electrical wiring harness for the injection pump. Connect any additional components that you removed to access the injection pump.

8

Attach the cables to the negative battery terminals with a socket wrench. Start the engine and correct any fuel leaks.