Fix It

Chrome is short for chromium, a naturally occurring element electroplated on the surface of hard metal to give it a fabulous shine. Chrome is a soft metal that resists tarnishing, but over time, exposure to air and the elements will cause it to rust and pit. If not taken care of, pitted chrome will continue to deteriorate. You can polish out minor pitting by hand, but deep pitting requires professional re-plating.

Instructions

1

Wash the part with water and dish detergent. Rinse the part and dry it with a lint-free cloth. Run your fingernail over the pitted section. If the pitting does not catch your fingernail, you can polish the section with steel wool. If the pitting catches your fingernail, it is too deep for polishing and needs professional restoration.

2

Dip a piece of 0000 fine steel wool into water and lightly polish the pitted section. Rub in a circular pattern until the pitting is gone. Wipe the surface with a dampened cloth to remove any steel wool fibers.

3

Dip a piece of 00000 superfine steel wool into water for a final polish of the surface. Rub in a circular pattern. Wipe the surface with a dampened cloth to remove any steel wool fibers, then pat dry.

4

Use a cotton cloth and any kind of chrome polish to remove fine scratches and give the part a lustrous shine. Apply the chrome polish to the surface of the entire part.

5

Spray a light coat of clear lacquer, acrylic or urethane on the part to protect the chrome from oxidation. Follow the directions on the spray can, then apply two to three coats.

Motor mounts are important automobile parts used to protect the engine, transmission and surrounding components from damage. Motor mounts also reduce the amount of noise and vibration in the vehicle to improve passenger comfort.

Operation

Motor mounts secure the engine and transmission to the body of a vehicle. Motor mounts are made of two plates of steel joined by a large rubber block. One plate is attached to the engine or transmission and the other to the frame. The rubber block cushions the movements of the engine and transmission.

Hydraulic

Though less commonly used than the rubber block design, some motor mounts use hydraulic fluid to cushion the engine and transmission movements. These mounts also use two steel plates but are connected by a small hydraulic cylinder. Some hydraulic mounts adjust while driving to optimize the mounts performance.

Troubleshooting

A defective motor mount allows the engine and transmission to move too far and too quickly. During acceleration or heavy braking, the broken mount may create a thumping noise as the engine or transmission strikes the broken mount. Broken motor mounts should be immediately replaced before this excessive movement causes damage.

Replacing the exhaust manifolds on your Ford F-150 truck is a complicated process that varies greatly depending not only on the year of the truck but also the type of engine. The manifolds are connected to the cylinder heads and the catalytic converters. You should talk with your mechanic before attempting this type of repair.

Instructions

V6 Engines

1

Disconnect the trucks negative battery cable, then raise the truck and securely support it on jack stands.

2

Disconnect the electrical connectors to the oxygen sensor.

3

Remove the nuts connecting the exhaust Y-pipe to the manifolds. Apply penetrating oil to the nuts and studs, if necessary.

4

Remove the engine lifting bracket. For the drivers side manifold, remove the dipstick tube from the oil pan by removing its nut and pulling it out. For the passengers side manifold, disconnect the EGR pipe from the manifold.

5

Disconnect the six mounting nuts for the exhaust manifold. Separate the manifold from the cylinder head and remove the old gaskets.

6

Place the replacement exhaust manifold with new gaskets onto the cylinder head. Install the mounting nuts with a torque wrench, tightening the center nuts first, followed by the front pair and the rear pair.

7

Reconnect and install the other components in the reverse order of removal--this can include the engine lifting bracket, oil dipstick tube, EGR pipe and oxygen sensor electrical connector.

8

Lower the truck and reconnect the battery cable.

V8 Engines

9

Disconnect the negative battery cable, raise the truck and support it on jack stands. Remove the inner splash shield from the fender well.

10

Disconnect the EGR pipe at the EGR valve and exhaust manifold if you are removing the drivers side manifold on a 4.6 liter engine. On a 5.4 liter, remove the front and rear heated oxygen sensors and the exhaust support bracket.

11

Remove the starter if youre removing the passengers side manifold. Also remove the stabilizer bar on a 5.4 liter engine.

12

Disconnect the catalytic converter assemblies from the manifold on a 5.4 liter engine by removing their nuts, then move the assemblies to the rear of the truck.

13

Remove the mounting nuts from the exhaust manifold and remove it. Remove the studs from the cylinder heads and discard them and the nuts.

14

Clean the mating surface on the cylinder heads, using a gasket scraper to remove any carbon deposits. Install new studs into the cylinder heads.

15

Place the exhaust manifold over the studs with new gaskets. Install new mounting nuts, working from the rear to the front and alternating between the top and bottom rows.

16

Install the remaining components in the reverse order of removal and lower the truck. If you need to reconnect the EGR pipe, apply a small amount of anti-seize compound on the threads.

You can reset the service engine light on your Chevrolet S10 by using an OBD-II scan tool. This on-board diagnostic tool can be purchased from your local auto parts retailer, although many such stores will check the code and reset the light at no charge.



The service engine light will turn on at regular intervals when your vehicle needs routine maintenance. After the maintenance is completed you will need to manually reset the light to turn it off. This is an easy adjustment that will only take a few moments.

Instructions

1

Look for the OBD II port located near the emergency brake on the lower dashboard. The OBD II port will be the receptive end for the connector on the OBD II scanner tool. Examine the connector end of the tool and the receptive port to make sure you have the correct port. Plug the OBD II scanner tool into the port.

2

Close the doors, roll up the windows and turn on the OBD II scanner tool. Put the key into the ignition and turn it to "on," but take care not to start the engine. Turning the vehicle on will start the electrical system which will power the OBD II scanner tool and allow it to do its job. The engine needs to remain off for the scanner to work.

3

Wait for the screen on the scanner to stop flashing. The service engine light will have turned off. Turn the key in the ignition to "off" and unplug the scanner.

4

Restart the engine and verify that the service engine light is still off on the instrument panel. Turn off the car.

Like any other craftsman, a mechanic must use tools to aid him in getting the job done efficiently and effectively. One such tool often taken for granted is the bottle jack. A bottle jack lifts a heavy vehicle with hydraulics. Without a bottle jack, a mechanics work would often be impeded by the lack of accessibility to a part of a vehicle. Repairing a bottle jack can be expensive. Try fixing it yourself before making the investment in repair or a new purchase.

Instructions

1

Extend the jack arm fully to its maximum height at the jack mount surface.

2

Locate the release valve on the opposite side of your pump. Pull out the piston located within the chamber.

3

Use your flashlight to check the chamber for cracks, oil build-up, dirt and other substances. You should see a small trace amount of oil within the chamber but nothing more. Excessive dirt indicates a bad seal which will require professional repair.

4

Locate the oil reservoir filler cap which is the uppermost cap inside the release valve. Use your screwdriver to pry open the cap if necessary. The hydraulic oil should be 1/4 inch below the opening. Fill the reservoir to the 1/4 inch mark if necessary.

5

Wipe the jack clean with a cloth to detect oil. Pump the jack several times by the handle with the release valve still open. Look for leaking oil.

6

Close the release valve. Pump the jack up to its full height position. If the jack will not rise, bleed the jack by opening the release valve.

7

Attach the jack to your vehicle. Pump the jack to lift the vehicle to see if the jack is now working properly. If the jack will not lift, seek professional repair.

Removal of the shifter boot in your Dodge Ram truck allows you to access the four bolts on top of the transmission retaining the shifter assembly to the transmission. The rubber boot may crack over time and require replacement as well. If this is the case, you can get a replacement from the dealer or through a salvage yard. If you remove the shifter boot and intend to reuse it, use care so you do not rip it as you pull it off the shifter shaft.

Instructions

1

Sit in the seat of your Dodge, sliding it all the way back to expose the shifter boot on the floor of the truck. Locate the metal ring on the floor surrounding the shifter boot.

2

Grasp the shifter knob on top of the shifter assembly, turn it counterclockwise to loosen it and remove it from the shifter shaft. Set the knob aside in a safe spot so you can put it back later.

3

Locate the screws in the metal ring on the floor around the shifter boot. Remove the screws with a Phillips screwdriver, and set them aside.

4

Lift the ring, and pull the boot up the shaft. Pull the entire boot assembly off the top of the shifter shaft as a unit.

Car air conditioner systems have multiple parts and if any of them malfunction your air conditioner may stop working properly. If you find your cars air conditioning system is not producing the cool air it used to, there are a number of simple ways to investigate the cause of the problem. Most air conditioner malfunctions occur due to a lack of rigerant, sometimes caused by leaks in the air conditioning unit.

Instructions

Check the Refrigerant Level

1

Turn off your car, then open the hood and locate your air conditioning unit. Air conditioning units are located at various places depending on the type of car you own. If you have trouble finding it, consult your car manual. The unit will have a compartment for the rigerant and a fan system.

2

Connect the AC pressure gauge to the side port of the air conditioning unit. Turn on the car and allow the engine to run for a few minutes.

3

Depress the accelerator. If the AC pressure gauges meter dips down when you accelerate, there is not enough rigerant in the vehicle.

Check for Leaks

4

Visually inspect the air conditioning unit with your car running. Check to see if the compressor is cycling and if the fan belt seems work.

5

Inject a small amount of auto-safe florescent dye into the air conditioning unit. This florescent dye is available at most auto parts stores and allows you to see any leaks or damage in the air conditioner unit. Follow the directions for insertion on the can.

6

Visually inspect the air conditioner unit for any holes or leaks in the pipes, tubes or compressors. The florescent dye will cover any holes or cracks, making them easy to spot.

7

Fix cracks or holes before adding more rigerant to prevent pollution and damage to your vehicle.