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Chevy Silverado and GMC Sierra Electrical and Computer Questions

768 messages,  Last post on May 07, 2013 at 9:49 PM

You are in the Chevrolet Silverado & GMC Sierra Forum.

What is this discussion about? Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Truck

    
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Messages Page 76 of 78

#743 of 768 Re: Ghost in the electrical system [robertreed1] by johnsaved

Oct 22, 2012 (11:39 pm)

Replying to: robertreed1 (Oct 22, 2012 6:39 pm)
I have an "08 GMC Sierra 3500 and my ghost turned out to be a loose ground on the frame under the driver's seat. There are several grounds attached to the frame. If your truck spends any time in the cold climate, I am sure that you have noticed rust on the frame. GM's solution for corrosion control was to have the frames dipped in some sort of wax instead of painting them like the rest of the world. As soon as a single drop of water gets behind this wax it is all over and the wax starts to literally peel off. When GM installed the grounds to the frame they never cleaned the connection point off and the grounds were screwed on top of the wax. This works for a little while but once water gets behind that little 10mm bolt and freezes a couple of times, the wax and the bolt are loosened and the grounding point is compromised. You would think that they would have a service bulletin on this by now. You would also think that GM would have gotten away from those waxed frames by I just took a look at a 2012 and yep, wax frame that was already rusting. Reminds me of the early 70's. Check all of your ground points. Loose grounds drive the ECM's bonkers.

#744 of 768 Shift indicator messed up by thegiver61

Nov 09, 2012 (4:40 am)

I have had this happen 2 times now. After driving my 2008 GMC 4x4 the indicator for the shifter keeps loosing P,R,N 1,2,3 and all the lines under them ------- it starts off with one disappearing then one by one they disappear. until they are all gone. Then all of a sudden they are all back just like nothing happened

#745 of 768 Re: Shift indicator messed up [thegiver61] by gmcustsvc

Nov 09, 2012 (9:20 am)

Replying to: thegiver61 (Nov 09, 2012 4:40 am)
Hello thegiver61,
 
If you decide to get this checked out by a GM dealership and wanted for us to follow up on that appointment with them, please contact us at socialmediagm.com (include your name and contact information, the last 8 digits of your VIN and mileage, the name of your dealership, and a summary of the situation).
 
Sarah, GM Customer Service

#746 of 768 scary downshift with door locks locking/unlocking by cjsm1982

Nov 12, 2012 (1:15 pm)

have seen this post, or something like it and was wondering of anyone ever figured out a fix.. I have 2010 Silverado 2500HD - like the truck, but after three scary experiences I am loosing the faith..

#747 of 768 Re: scary downshift with door locks locking/unlocking [cjsm1982] by gmcustsvc

Nov 13, 2012 (7:12 am)

Replying to: cjsm1982 (Nov 12, 2012 1:15 pm)
Good morning cjsm1982,
 
We're sorry to hear that you are not feeling confident in your truck. If you would like for us to follow up on this with your involved dealership, please contact us via email at socialmediagm.com (include your name and contact information, the last 8 digits of your VIN and mileage, a summary of the situation, and the name of your involved dealership).
 
Sarah, GM Customer Service

#748 of 768 Re: 2001 not starting after rebuild [smxtuner] by pcampbell5

Nov 21, 2012 (7:16 pm)

Replying to: smxtuner (Sep 11, 2010 9:49 am)
I rebuilt a 2002 and it fired right up...no ignition timing needed, but im no mechanic...that same truck is forgetting the key occasionally and I have to train the key to the truck for ten minutes before it knows it not being stolen and will allow it to run. After u attempt to start the truck leave the key in the on position and if the diagnostic screen on the dash flashes the security light at u then back to the battery light leave it on for ten minutes until the security light is no longer flashing then turn off and retry...sometimes it has taken two to three times of doing that then all the sudden it will fire right up and no problems untill that sob forgets again...have no idea what keeps cusing this to mine... good luck maybe this will help u

#749 of 768 Fix for Silverado Electrical "Gremlin" by dbvz

Feb 08, 2013 (9:58 am)

Has anyone resolved the electrical "Gremlin" as described in post #556? I have experienced this and it is quite frightening while driving. Called my local dealership and he said he had never heard of anything like that happening. Don't want to waste a bunch of money there if they have no idea what is going on. Seriously considering a trip to my local Ford dealership for a trade. What a shame, I really like my Silverado.

#750 of 768 Re: Fix for Silverado Electrical "Gremlin" [dbvz] by barnowl3

Feb 09, 2013 (12:53 am)

Replying to: dbvz (Feb 08, 2013 9:58 am)
There was a guy on here that documented similar problems on youtube and it was scary. He apparently got some deal from GM and the youtube video was erased. MY GM truck lost brakes early in life due to brake lines that rotted out in less than 4 years. Endless warranty issues and I was nearly always greeted with the "deer in the headlights" look at my dealer, but at least they fixed at 1-3 warranty items at nearly every oil change ( several repeats in 3 years) . I know of many accounts of the early failing brakes, and in fact it was investigated by NHTSA, only to see the case suddenly closed. GM Customer Service kindly contacted me on this board, only to tell me, 'sorry, we know nothing about those brake line that burst early in life' (many accounts on the internet though). After 35 years, I bought a Ford. You will be glad you did. Had a warranty issue, no deer in the headlights look, they just fixed it.

#751 of 768 Re: Starting issues [wingnut58] by sarahc7

Feb 13, 2013 (2:10 pm)

Replying to: wingnut58 (Jun 15, 2011 7:49 pm)
I had the same issue with my "07 Silverado 1500 as well a couple months ago. It reminded me of a cold start on an old pickup. I had to attempt to turn the engine 3 times for it to start. I knew it was not a battery/alternator issue because I had power, but it just did not want to turn over. I told my husband about it and he did not seem concerned as it has never happened before or since, but there are many other issues with this truck that I have experienced and have read about on this forum. It almost seems worth it to look into trading it in before it goes kaput on me.

#752 of 768 Re: Needs A Recall. [gmcustsvcsarah] by tracyvt

Feb 13, 2013 (2:27 pm)

Replying to: gmcustsvcsarah (Jan 31, 2012 7:28 am)
Sarah,
 
Can you please assist me, as well? I am having the same issues with the ABS and Parking Brake lights on my 2000 Silverado 1500, 5.3L V-8 Z71. It has 181,000 miles on it. I can email you the VIN. Thanks so much!

Messages Page 76 of 78

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