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Comments
Also had to replace both rear tailgate switches thatwent out at the same time.
I also feel there is something not quite right with the trans - seems to slip at times. 50,000 miles on it now.
The entire electrical system, including the PCM rely on correct Alternator current and your not going to find that for any length of time with A.M. I know the factory unit is more expensive but proper diagnosis needs a solid alternator.
If the dealer finds your problems are related to A.M. components, they can/will charge you for diagnosis. I don't work for the auto industry any more - I'm just giving you some experienced advise. I also drove a 2002 Envoy until this month!
Any ideas. Calling local GMC dealer in the a.m.......
Thanks!!!
Canton, Ohio :sick:
Any suggestions...
My 2003 Envoy jumps constantly from 4th to 5th(overdrive) at speeds mostly between 63-68 MPH (which is how fast I used to drive). My research points to the Transmission Control Module but it's confusing whether or not that unit has to be replaced completely or can be "re-programmed".
Other articles point to a servo or even a loose electrical wire.
I also notice a manual overdrive shift kit is available for purchase from the dealer and I'll resort to that if I have to. Hopefully I could install that myself.
Aamco wants me to bring it in for their free diagnostic but I haven't had good luck with them as usually they take an R&R approach until it's finally fixed.
Any suggestions would be appreciated.
Thank you very much.
-Doug
Rich L.
Good Luck
I am having the same problems you were having, can you tell me the dealership name and number you took your car to. I have an appointment Monday and would like to have all my ducks in a row. I find it odd and I am sure there are more situations like your vehicle and mine especially since as I read your description of what was happening and it sound like you were talking about my car. I appreciate any and all information you can give me. Please me email me at mbell033@yahoo.com
Thank you
It's better to keep the discussion right here so everyone will benefit.
tidester, host
SUVs and Smart Shopper
A couple weeks ago the Passlock light on the instrument cluster came on. A day later, all of the lights on the instrument cluster started going on and off at random (just really going crazy), and all the gauges stopped working. This kept happening intermittently over the next couple days. I'd go a half the day with no problem, and then non-stop problems the rest of the day. Just totally random.
We took it to our mechanic who replaced the ignition switch and sent us home. It started happening again just a couple hours later. We called our mechanic, and he told us it had to be the Body Control Module.
In the meantime, we had started having problems with the power shutting down completely on the vehicle while driving it. Usually when slowing down or accelerating rapidly. This seems to happen right at the same time all instrument cluster starts going nuts.
We took the Envoy to a GMC dealer service center, replaced the Body Control Module, and had them program it. I took it off the lot, and the power shut down halfway down the road to the freeway. I took it straight back. They said they found a wire that was not properly grounded near the body control module. They said they fixed it, and sent me home again.
That evening, I left to go to the store and the exact same thing happended as before...Passlock code, crazy instrument cluster lights, engine died.
We took it back to the GM service center. They say they can't figure out what the problem is. The power actually shut down as we pulled into the garage. We showed them when we got it to start back up all the lights going on and off (flickering). They've had it all day now, and they say they can't get it to act up again to test it.
Does anyone have any idea what might be causing this? We've now had our car in and out of shops for almost 2 weeks, and we've spent close to $1,000 fixing and replacing things that haven't solved the problem at all. We're just about out of money, and this is our only car. I would really appreciate any suggestions.
I've looked around online, and seen plenty of people complaining about the same problem, not just with Envoys either. But I can't find many that have any suggestions. The only ones I've seen with any regularity are: Ignition Switch (which we tried), Body Control Module (which we tried), and Cam Positioning Sensor (which the GMC mechanic says he doesn't think it is).
Help!!!!!
Thank you,
Mooncet
By the way, the only other thing we've noticed is that moving the middle row seat (which happens to be right above the Body Control Module) seems to make it worse. It happens even when no ones touching it, but it happens more when someone is. I pointed this out to the GMC mechanic, and he tested it out when we first brought it back this morning. He folded it forward, and wiggled it back and forth, and it caused the instrument cluster lights to fluctuate. I'm sure that this has to be part of the problem.
It drains the battery really quick! Please I need help to fix this problem, I am unemployed and have to fix it myself.
Thank you for your help in advance! :confuse:
Kathy
My question is, is this considered low? If so, this would be a thermostat problem. If not, it could be a sensor problem.
Has anyone else had this experience?
Have you taken your vehicle into the dealer for these problems?
Christina
GM Customer Service
*Front differetial - replaced...Cost $3600.00 Dealer split difference w/ me since just out of warranty, and previous complaints from me about FWD performance.
*Transmission - went out... Just happened @ 100k miles. Cost $3000.00
*Rear tail-lights - continuously burning out
*Cigarette lighters - continuously burning fuses
*Radio lights - Half of radio lights are burnt out
*A/C - Fan blower will not work on highest (5) setting.. Cost wanted $500.00
*Windshield washer fluid motor - burnt out. Has been for a long time. Cost wanted $500.00
*Rearview mirror - Broke... Cost wanted $500.00.. You've gotta be kidding!
***Many other problems, but I am tired of complaning and coming upon deaf ears. Thanks for listening. I will never buy a GM vehicle again!
The emblems on the side are wedging against the front quarter panels and are flipping off...
I had everything fixed, by the way. The price tag now? Over 12,000.00 in repairs, not to mention the payment itself...
Never again.
I apologize for the problems you are experiencing with your Envoy. Please keep me posted on any information from the dealership.
Thank you,
Caron, GM Customer Service