Question about 2004 GMC Envoy
Could be bad electrical part that works for a bit while cold, but fails as it heats. Coil, ignition module, cam/crank sensor.
Posted on Jul 31, 2015
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Posted on Jan 02, 2017
SOURCE: veh wont start
by looking at the wiring diagram for your truck. the pcm1 fuse only feeds the pcm so most likely it is a grounded wire between the fuse block and pcm. follow the wire harness closely between the two and see if its grounded somewhere. also try disconnecting the pcm and see if the fuse still blows. that would isolate the problem to the wiring. it is highly unlikely that the pcm would cause the problem.
Posted on Nov 27, 2008
SOURCE: ignition key 2004 envoy
I had same problem. I would sometimes also leave the door open with lights on inside for 5 mins - then I could not start car, and key would not release.
I had a bad cell in the battery. Replaced the battery and all worked fine.
Posted on Apr 19, 2009
Posted on Jul 27, 2011
make sure battery is 12.6 volts. if not you not going to be able to get transmission go all the way in park to remove ignition key.when you press brake pedal it energize brake transmission shift interlock to get transmission all way in park to remove ignition key.if all is good battery is 12.6 volts.sound like ignition switch lock cylinder broken more likely.
Posted on Nov 07, 2011
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