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Electrical problem?

Zbyke

By Zbyke
in Ask A GM Technician

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Zbyke Enthusiast

Zbyke

Posted
Posted

I have a 2009 GMC Sierra crew cab z71.

 

About two to three months ago my locks started unlocking and locking three to four times while I was driving. It would randomly do this, I could have a week or even longer where it wouldn't happen and then out of the blue they lock and unlock, three to four times while driving.

 

Then about a month ago, after parking and going into the store, I tried to remote start my truck (factory remote start) and it didn’t work. When I got into my truck I put the key in the ignition and turned and nothing, no power at all. I opened my hood looked around and didn’t see anything, closed it and it started back up.

 

Then randomly the stereo tuned on but no sound and my blinkers worked but there was no clicking sound.

 

About three days ago it has gotten even worse. My locks, while driving, unlocked and locked about 30 or more times. Each time it did that the acceleration wouldn't work, my truck was jumping up and down and I couldn't go more than maybe 10 miles an hour. When I pulled to the side of the road and tuned the truck off and back on, again there was no power just completely dead. I got out and opened the hood and as soon as I did my lights came back on and my hazards started to work (I pushed the hazards button right before getting out of my truck.

 

Any idea just what may be causing this?

&CDFiXER% Enthusiast

&CDFiXER%

Posted
Posted

Bad battery connection(s).

Bad/poor grounds.

Battery shorting internally or otherwise failing.

txab Senior Enthusiast

txab

Posted
Posted

Bad battery connection(s).

Bad/poor grounds.

Battery shorting internally or otherwise failing.

 

Bad battery connection(s).

Bad/poor grounds.

Battery shorting internally or otherwise failing.

^^^^ The place to start.....

zach1990 Senior Enthusiast

zach1990

Posted
Posted

Had a similar problem in my 2000 sierra and it turned out the negative battery cable was just loose enough to vibrate around. Tightened it and fixed

 

Sent from my SGH-I927 using Tapatalk 2

Zbyke Enthusiast

Zbyke

Posted
  • Author
Posted

Thanks for the replies, I will let ya'll know what I find out.

  • 1 month later...
Zbyke Enthusiast

Zbyke

Posted
  • Author
Posted

Turned out it was a corroded positive wire that ended up touching the frame. Fixed it and its good now. (fixed back in April)

&CDFiXER% Enthusiast

&CDFiXER%

Posted
Posted

Glad it was ¢¢ and not $$!

 

Gotta watch for that stuff, it is hard on electrical parts and electronics!

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