Five problems related to suspension have been reported for the 2004 GMC Envoy. The most recently reported issues are listed below.
Nothing but this has been nothing but trouble since I bought for that dealership. Guy from todd wenzel grand rapids michigan. I had just back into the shop several times they will not do anything about it she's just used to going ever since I bought this car and your is something wrong with the engine itself it cuts out car smells like something burning I do not feel safe in this car and I still owe on it I like to report todd wenzel Buick to the better business bureau they're lousy people thank you also sent all this information GMC and have not got anywhere.
The speedometer and tachometer of the SUV began to indicate incorrect readings. The speedometer works fine until we go on the highway and travel with the cruise control set between 65-70. Then they will read the incorrect speed for a week or so then start working fine again. The tachometer needle just "hangs. " I talked to 2 different repair shops who adviced me that this is a common problem with enovy's and trailblazers. The cost to do this is over $500 or more. It appears that several other 2004 GMC Envoy owners are experiencing this same problem. A recall should be in order. When I talked to the repair shops they said before they can correct the issue under my extended warranty is to see it happen. Each time I had an appt set it would start working before the appt date so there is nothing they can do. Very irritated that GMC doesn't address this now.
The contact owns a 2004 GMC Envoy. The contact stated that after parking, the vehicle rear suspension dropped. The vehicle was taken to an independent mechanic where it was stated that the rear suspension system needed to be replaced. The vehicle was not repaired and the manufacturer was notified. The approximate failure mileage was unknown.
Due to the check engine light constantly coming on I was told that I needed a new gas cap. It was stated if the cap is not on properly it affects the emission conrols. I have replaced the gas cap several times nothing has changed engine light goes on and off. There still has not been accurate justification for this matter. Vehicle has faulty / leaking air bags on the rear suspension. Upon research this has been a problem on GMC vehicles from 1994 ~ 2006. Why are there no recalls? GMC Envoy vehicle are sitting very low during freezing tempatures. Upon starting the vehicle it will rasie back up and level itself but it should not drop down low period. Websites are flooded with complaints. I have contacted GMC regarding all these issues and nothing has been done. I was told there were no recalls regarding these matters which I don't understand. I have viewed so many complaints on several websites regarding these same issues. Exterior lights~ lamps have faulty sockets due to moisture getting inside the lamps / back up lamps. Bulbs burning out continuously. Unfortunately when you take your vehicle to a frequent dealer, many times they'll step outside to check your vehicle quickly without putting you in the system if they feel no service is required. I believe this may be why these complaints are not being addressed/ reported / or recorded. It is apparent there are serious problems with these vehicles. Something needs to be done, and we should not have to deal with repeat manufacturer defects/hazards year after year. It is not fair to us (the customer). They can continually contact you to trade in your vehicle or buy it, but they can't contact you regarding defects on the vehicle. I was told they only notify the original owner of recalls. Again they'll contact you regarding marketing and advertising. Thank you in advance for your time and consideration.
When vehicle parks air bags go down don't come back up very bumpy dangerous ride awful handling compressor sometimes won't be strong enough and sometimes won't work at all airbags won't inflate even with external air induced along with compressor full blast.