1997 GMC Sierra vehicle wont start

1997 GMC SIERRA
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BRANNON
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Engine Mechanical problem
1997 GMC Sierra V8 Four Wheel Drive Automatic

vehicle gets fuel and is firing i replaced ignition module, crank position sensor
Dec 15, 2009 at 2:21 PM
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RASMATAZ
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1997 GMC Sierra vehicle wont start

No start condition:

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
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Dec 15, 2009 at 3:37 PM
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