Mechanics

1500 HD ELECTRICAL PROBLEM

2001 GMC Truck • V8 4WD Automatic • 90,000 miles

I have a 2001 GMC 1500 HD 4x4 that is having electrical problems. It will shut down everything for no reason. I will jump it and it runs fine for a while then it will just shut everything down again. It is happening more frequently now, what could be wrong?
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Friepig
March 29, 2011.



Why do you have to jump it, is battery down? Have the battery and charging system tested. Any applicable trouble codes?

It could be any one of several things, intermittent rpm signal, maybe the ignition switch has a problem? You have to test when problem is ongoing.

JDL
Jun 6, 2011.
You swich had to comunicat with the safey wair in tare so start there and reset the key set to on with out starting 10 min; s security lamp go out then turn off 10 sec. Repeat 3 times. Shoud reset.

Tiny
HarlandHARLAN
Nov 26, 2012.