1993 GMC Jimmy won't start

[quote:8a5b842a8c="tumbleweed"]Engine Mechanical problem
1993 GMC Jimmy 6 cyl Four Wheel Drive Automatic
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Alright I have a 1993 gmc jimmy it has a 4.3 vortex. It won't start. I have replaced the fuel pump the filter the injector cluster the fuel pressure regulator the ignition module cap rotor plug wires plugs the computer and all the fuses. I am getting good spark and I am getting fuel all the way to the fuel injectors but that's it. I am at a total loss and need help, please.[/quote:8a5b842a8c]

Hello,

You say you have good spark, what color is the spark it should be bluish/white. If it is an orangish color you have a weak spark and in most cases the vehicle will not start.

Have your check the Timing? Bring the #1 cylinder to top on compression stroke, remove cap and make sure the rotor it pointing at the #1 plug tower.

Sep 12, 2008 at 3:40 PM

first off let me thank you for helping. Yes the spark is a white color and the timing is set dead on. I am get fuel all the way to the injectors but they are not spraying. Once agian thank you for the help

Sorry, I am drawing a blank for some reason.....

Does the vehicle have a security system and/or a chip set in the key and lock cylinder? If has chip in key and you have a spare have you tried the spare key?

no it doesn't on both, I have called every shop I could and no one can figure out why it si not running but thanks for trying

[quote:8ff606732f="tumbleweed"]no it doesn't on both, I have called every shop I could and no one can figure out why it si not running but thanks for trying[/quote:8ff606732f]

Hello,

I have asked for some additional help on the since I have drawn a total blank on this.

Ok,

Have you checked the injector harnesses? If injector harnesses check ok. Then check the injector resistance it should be....

4.3L Vin - Z Turbo --- 2.0 ohms

All others - 1.3 ohms