Saturday, February 15, 2014
What Would Make Your Car Not Crank When You Just Got a New Starter for It
In the early 1900s, people had to start their vehicles by turning a large crank at the front of the vehicle. In 1911, Cadillac approved Charles F. Ketterings design of the electric starter for its 1912 model year cars. Replacing a starter can be a difficult task in some vehicles, and it can be frustrating when the car does not start after all of your work. There are four main reasons for your car not cranking when you just got a new starter for it.
Incorrect Wiring
There are three wires that connect to the rear of the starter solenoid on most cars. If you forgot to label these wires and incorrectly reinstalled them, the starter will not work at all. Double-check the wiring of the starter against a wiring schematic for the starting system and adjust it, as needed.
Electrical Shorts
Any time you replace any electrical component on your vehicle that has constant voltage from the battery, you must disconnect the battery prior to servicing it. If you left the battery connected while installing the starter, it is possible for you to unintentionally touch the power and ground cables together. This may cause a short inside the battery or in the wiring, resulting in the car not starting. Check the voltage coming into the starter, using a voltmeter. If little or no voltage comes into the starter, inspect the wires and battery for shorts.
Misdiagnosis
It is possible that the starter was not the problem to begin with. If not correctly diagnosed, it is easy to mistake many other problems with starter failure. Some problems that result in similar symptoms as a failed starter include, but are not limited to: failed ignition switch, discharged battery, loose battery cables, security system failure, failed starter solenoid (if separate) or damaged flywheel or flexplate.
Faulty Starter
When the manufacturer builds a new starter or rebuilds an old starter, it tests the starters prior to shipping them to retail stores or end-users. This testing typically catches any failed starters prior to shipment, but human error does allow for a small percentage of failed starters to ship out. After checking the areas described in the three previous sections, remove the starter and take it to a local parts store to have it tested. In the future, have all electro-mechanical components tested before installing them.
