Which engine and transmission do you have? When it doesn't crank, try shifting to neutral. If that works, suspect the neutral safety switch. If there's no change, there's two ways to approach this. One is to measure voltages on the four wires at the starter relay.
This is the same circuit that is used on your car, and the test procedures are the same, but the wire colors may be different. If you can't figure out which one is the starter relay, I'll try to find a service manual, and describe it for you.
The other method is to pry the cover off the starter relay, then squeeze the contact. If the engine cranks, we know two of the three circuits are good.
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Wednesday, December 26th, 2012 AT 10:56 PM