Gmc

Asked by Mar 23, 2017 at 10:28 PM about the 1998 GMC Sierra 1500 C1500 SL Standard Cab SB

Question type: Maintenance & Repair

I have a 1998 GMC 1500 good spark good fuel
pressure but won't run can anyone help

1 Answer

72,385

Spray some starting fluid down the throttle body and see if it'll run a few seconds on that. If so, check for injector pulse with a noid light. If it won't run on the starting fluid and you know that you have spark, do a compression test. If all cylinders test very low or zero, the timing chain has jumped. HTH. -Jim

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