First, check the battery under load by checking voltage when turning the engine over. It should stay around 12V. any other drop and it is bad.
The starter solenoid or relay may have failed. The starter relay is behind left side of dash taped to harness.
Double check positive and negative cables for corrosion at posts, tight fit at posts and at the starter, for positive and the negative at the engine block.
Here is a link for general testing and alternator test;
If the engine is turning over and it won't start, the fuel pump relay might be the problem. It is in the I/P junction box under the hood to the right of the brake master cylinder.
Sunday, October 2nd, 2011 AT 8:46 PM