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GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

Electrical Issues

Old 09-01-2015, 07:06 PM
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Staging Lane
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Default Electrical Issues

My truck has been acting up with some weird issues. When accelerating, it will randomly kick out of gear, rev up, door locks will cycle unlock/lock, revs come down, goes back into gear, and all is normal. It does not throw any codes. I have gotten a airbag light and stabilitrak light, but they go out immediately. I cannot seem to figure this out. So far I have...

Cleaned battery posts
Cleaned battery grounds
Replaced the mega fuse
Ran additional 4g cable from battery to engine
Ran 4ga from engine to frame
New Alternator

I'll have the battery checked tomorrow and see what happens.

Here is a video of the issues. Anyone have any insight?
Old 09-02-2015, 12:06 AM
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I would replace the electrical portion of the ignition switch. They are pretty inexpensive and not to bad to replace. I've seen similar problems like this and most have been fixed with that switch....
Old 09-02-2022, 08:55 PM
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I have experienced strange issues !! ( Press the brake pedal and truck would start no key in , start and die instantly exc...) after sitting frustrated for almost a year I dragged it to the dealership ! I was told it was a break light switch.
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