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Chevrolet Tahoe, Electrical, SUV
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#207 of 459 Chevy Tahoe No Power (sometimes)
Nov 11, 2011 (12:18 pm)
We have a late model 2000 Tahoe. Our most recent issue is the other day the truck had NO POWER at all. No door locks, radio, lights.... So since door locks did not work, had to do it manually. (We know it's not the battery, starter or alternator) After opening and closing the driver side door, everything worked again. ? Now a couple months ago we had issues where the truck wouldn't kick over. We narrowed it down to either the fuel pump, fuel pump relay or short. Found out the 40amp fuse kept blowing out. To jump to the end of that story, we found out that part of the heat shield was too close to the starter and by removing the shield and cutting an inch or 2 off the heat shield and then putting it back on, everything was fine. Wasn't easy or cheap to finally figure that out. Bought a lot of unnecessary fuses and also paid a guy 100 who got it running for a day until it did the same thing. Now we are sure this current problem has to be electrical. Anyone ever have this happen? The truck started fine when we checked periodically yesterday and also on the way to work this morning, BUT when leaving work, it did it again. I unlocked the doors with the remote. Got in turned the key and then NO POWER again until I opened and closed the driver side door. Also the passenger window has not been working for a few days. Has done this before but usually eventually will work again. Only hear a clicking sound but no window movement. I have been going through a lot of these older forums but there are SOOOOOOOOOOOOO many.
#208 of 459 Re: 2009 Electrical Problems [t_tex]
Nov 18, 2011 (2:34 pm)
Update: Car was in the Chevy dealer shop for over a week. They test drove the Tahoe until would act up again and it finally did for the tech. They couldn't see any DTCs stored even after it went into a total malfunction episode - chimes ringing, warning lights illuminating, service messages in the DIC, door locks cycling multiple time and then finally ending with car in limp mode. So the diagnosis was going to be slow going. They tried replacing the fuse block but that didn't fix anything (they didn't charge me they just put my old one back on). Finally, after over a week in their shop (second time in shop over a week at Chevy) I had the car towed to a specialty Auto Electrical shop yesterday that I'm hoping will properly diagnose and fix the car. The problem with the Chevy dealer is that in order for the techs to make any money they have to FIX cars. So my car's tech couldn't afford to just stay working on my car full-time - he had to take on other cars that could make him money, while he was working on my car. At least they are honest about that. So my only choices were to leave at Chevy indefinitely with tech working on it part time or going with the specialty shop with the tech's undivided attention - an obvious decision. I'll keep you posted.
#209 of 459 07 Tahoe electrical issues
Nov 19, 2011 (12:56 pm)
Have an 07 Tahoe that has had intermittent and what I thought were just isolated freak things happening, but once I read everthing here I'm thinking they are all related and long running. On occasion I've had problems with door locks not working, windows not working, and various error messages that were wrong. Then went out to take my kids to school two days ago and it wouldn't start. Assumed it was the battery but all the dash was lit up and the radio worked. The exterior lights worked but not the interior lights and the door locks and key fob didn't work. Had my inlaw replace the battery and still wouldn't start. He checked all relays and fuses and still nothing. Had it towed to our mechanic and hoping he can find something, but this car seems to have been plagued by small weird problems since we got it. Hoping to find a solution and avoid the dealership on this...
#210 of 459 2007 GMC Sierra with same Electrical issues
Nov 21, 2011 (8:29 am)
I have an 07 GMC that has had intermittent electrical issues since day of purchase starting at 16 miles. As I read everthing here I'm thinking they are all related and that GM has an Electrical issue they are covering up. On occasion I've had problems with door locks not working, windows not working, and various error messages that were wrong. It wouldn't start. Assumed it was the battery , replaced 3 times. replaced batter cable $400 . 4 fuel pumps, all main board computers replaced twice and problem still existed. All the dash was lit up and the radio worked. The exterior lights worked but not the interior lights and the door locks and key didn't work. Had dealer in Austin drive vehicle to see issue but GM still not aggreeing to electrical issue. The dealer checked all relays and fuses . This truck seems to have been plagued by small weird problems since I got it. The Dealer found that the main fuse block was Bad this cost me $1089. GM refuse to pay for it. The dealer lied and said that part failed due to age, but this vehicle has always had the issue. If you find that bthis is your issue by the part and replace it yourself the dealers price is inflated part can be purchase for about $150-200. The GM Service manager and Customer care tried to convince me that these electrical issues are not related. If you have the basic understanding of electronics and wiring you could see this as an issue. At this point I am testing to see if problems return and will send the old part out to have a FA done. GM should cover this but again business politics and Greed is more important than Consumer safety and Quality products.
Testing and hoping for a fix
#211 of 459 Re: 2009 Electrical Problems [t_tex]
Nov 22, 2011 (10:36 am)
I apologize for your frustrations. Did the dealer involve Technical Assistance? Can you email me your VIN and current mileage? I look forward to your response.
GM Customer Service
#212 of 459 Re: 07 Tahoe electrical issues [pookitasd]
Nov 25, 2011 (6:06 am)
If you like, poolkitasd, I can look into your vehicle's information to see if there are any open recalls associated to your VIN. Please email me the last 8 digits of your VIN and we'll do that!
GM Customer Service
#213 of 459 Electrical Problems
Nov 28, 2011 (12:06 pm)
I see that alot of you have experienced unexplained electrical problems in your GM vehicle 2006 or newer. How ever I am in the process of purchasing from a private party a 2002 Suburban that seems to have a drained battery every time I go to turn the truck on and while driving I have experienced the door locks on/off symptom along with a quick "Safety" light that flashes on/off on the dash and interior lights on/off as the door locks lock and unlock. I have not experienced any power loss and the truck keeps driving fine it's just that very quick door locks and lights thing that happen very fast and everything continues as normal. The guy I'm buying the truck from is getting me a new battery any day now but from reading the prev messages I'm thinking this is more than getting a new battery in the truck. I love the truck other than that electrical issue but I have second thoughts now. If someone can post a fix for this I'll be so happy buying this truck if not I might have to return it. Might be that guy im buying from knows of the problem and is dumping it on me?
That OnStar theory by T Tex makes sense to me,.... any luck with that T Tex?
#214 of 459 Re: 2009 Electrical Problems [gmcustsvc]
Nov 28, 2011 (12:49 pm)
I have this exact same problem with my 2007 Chevy Tahoe. Cycling gages, intermittent chimes, transmission etc. Did you get the problem solved? I have had my vehicle in the shop probably 8 times or so in the last 7 months for this issue and it is not yet resolved. It is going back into the shop tonight. PLEASE PLEASE HELP!!
#215 of 459 Re: 2009 Electrical Problems [jbossert]
Nov 28, 2011 (10:18 pm)
No, the dealer had it two different times for over a week each time. The dealership tech I think was just overmatched with this problem and wasn't motivated to work on a vehicle that required alot of research and possible technical assistance from GM while generating very little repair billing. It takes a very experienced and well trained tech who is willing to follow some very intense diagnostic protocols to be able to solve intermittent electrical problems - and I think if you read enough of these blogs you come to find out that there are very few of those kind of techs out there - in dealerships or independent shops. I have it at a specialty auto electric shop right now and we'll see what they can do - they drove it for about 300 miles before it malfunctioned on them so it's slow going. I did receive an email from Christina (GM) asking for my VIN and mileage which I replied to but I haven't heard anything back. My biggest complaint with GM is that they have developed very complex electrical systems (GMLAN) that provide a very advanced vehicle but there is not enough well trained, experienced techs who can fix these vehicles when the electrical systems start going haywire - especially the intermittent kind. I would prefer to use my Cheverolet dealer to work on this problem but they are not prepared (through training or experience) or motivated to properly diagnose and solve my Tahoe's intermittent electrical issues.
#216 of 459 Re: 2009 Electrical Problems [t_tex]
Nov 29, 2011 (6:54 am)
Yeah, I think you are spot-on with your assessment of Tech capabilities (and availability). I just dropped my truck off at the dealership again last night. We'll see what happens. Let's stay in touch. I'll let you know if anything noteable happens. Please do the same.