Question about GMC Cars & Trucks
2004 GMC Envoy SLT 4.2L the engine was running good until turn the engine off then it wouldn't start up again what could have happen causing no spark at the coils? the coils is over the spark plugs. can anybody tell me what's wrong with the vehicle? i been trying to find the problem for about two weeks or more.
Check out the camshaft position sensor - if inoperative you will not get spark to your plugs since no voltage will go to any of your ignition coils.
Posted on Jan 16, 2017
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Posted on Jan 02, 2017
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