We were driving down i20 when we were coming off the off ramp and the stabilization light came on and we got to the stop sign to turn right and as were take off it shifted really bad out into 2nd it jerked really bad and we had no power we made it home and now it turns over but will not start. 2007 avalance it has 50,000 miles. I have been talking to other people on car gurus and there are thousand on that sight having the same problem were having. And the sad thing is we dont have the money to have our truck towed into town and get it fixed. Becasue they tells us that they have so many people having the same problem. I feel like gm should do a recall or people should be able to do a group lawsuit toward gm for such a big deal like this is. And also our dashes are all cracked down the middle. Which on that sight there are alot having same issue.
2007 Chevrolet Avalanche engine complaints
Page 2 of 2: complaints 11 to 27 of 27, newest first, as owners wrote them.
Stability control warning pops up on display, resulting in a severe power reduction. This causes the vehicle speed to drop from 70 MPH to around 35mph instantly. This nearly resulted in a rear end collision, of course. This was only prevented by a very alert driver behind me. I read that this is a very common issue with gm vehicles yet nothing is being done by gm to provide a safety recall
The 5.3 engine has had many complaints from owners where the engine fails due to oil recirculation and valves going bad. The manufacturer will not do anything to replace the engines. The engine starts running extremely rough and had to be towed to a repair facility
Tl* the contact owns a 2007 chevrolet avalanche. While driving approximately 60 MPH, the traction control warning indicator illuminated, and the steering wheel and engine began to shake uncontrollably. The odometer speed reduced drastically on its own. The vehicle was taken to an independent mechanic, but was not diagnosed. The manufacturer was not made aware of the issue. The approximate failure mileage was 142,000.
Tl* the contact owns a 2007 chevrolet avalanche. When the vehicle was started, there was an abnormal sound coming from the engine compartment. The contact stated that the exhaust manifold bolt heads fractured and caused an exhaust leak. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure. The approximate failure mileage was 81,108. Updated 10/18/16*lj
I bought this truck new and at about 30000 miles it starts to burn oil.about a quart between oil changes.took to dealer and they replaced lifters.there was no difference.then did oil consumption test where it got to the point of burning 1quart of oil every 800 miles.took back in then was told extended warranty will not cover and it is normal wear.truck at that time only had 73000 miles on it(aug.2015).they told me it could be$3600 to repair this issue.I than told them not to touch it and still dealing with issue at 78000 miles.
There have been continual problems with the engine of my truck and I have found out since buying it there are severe problems with a lot of the engines of the 2007 avalanche. The mechanic told me when we brought the truck in to find out why the engine had a hesitation in it, that we should hope it was the exhaust system seals needing to be replaced that caused the hesitation because the only other times he had seen this problem it was a manufacturing defect in the 2007 gmc engines that he had seen these problems with alot of the 2007 chevy and gmc trucks including his own. We also about 2 months after buying the truck noticed that the truck was going through oil very quickly but the mechanic said that the seals weren't leaking so didn't know why we were burning oil so fast. The dash has cracked at the corner of the air bag and if there is an accident it could send shards flying. The drivers door sticks and the stability control go's in and out of working order. The electric mirrors stopped folding in and tilting down and tried to have it fixed but chevrolet said they wouldn't give the mechanic the code to get into the computer system to fix it and the back up sensor that had stopped working also. We now have to go to a chevrolet dealership to have it fixed. There have been so many problems with these trucks that chevrolet hasn't fixed these trucks even used usually cost at least $15000 brand new you could double or triple that price I don't think it's a lot to ask to have a decent engine the other problems I could deal with but the engine problem they should fix
The engine has a hesitation due to a manufacuring problem it also uses more oil than it should between oil changes. Also having problem with the electrical system every time I turn around something stops working like the side mirror on the drivers side won't fold in like its supposed to and the backup sensor stopped working. Tried to get our mechanic to fix it but it needs a code to get into the electrical system and gm won't give it to anyone but thier own mechanics. So now we have to go to the dealership to have it fix which will cost alot more. About amonth after purchase the dash got a small crack around the passenger air bag. This is our second 2007 avalanche the first one had no problems at all and I had no idea that this model had so many problems that the manufacturer won't fix. With as much as these trucks cost even used the should have to repair things that are manufacturer defects
Tl* the contact owns a 2007 chevrolet avalanche. While driving at various speeds, the engine stalled and fuel fumes emitted into the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 120,000.
Total engine loss at highway speed, chevrolet want to replace the engine, but as I read all these complaint about engine and oil and afm. I believe they should be held accountable for selling lemons. The federal safety agency must put a end to manufacturers selling trash.
My main concern is the fact that the vehicle burns excessive amounts of oil. I have lodged about five complaints with ourisman rockmont chevrolet and my concerns remained unadressed. They did, on one occasion, change a gasket cover and oil pan gasket, but the problem persisted. Finally, I was recently told that I needed an oil deflector per a service bulletin and was told it would cost nearly $1,500.00. Although my concerns were all made during the warranty period, ourisman is attempting to charge me now that my vehicle is outside the warranty. I contacted chevy customer service but no luck.
Tl* the contact owns a 2007 chevrolet avalanche. The contact stated that the check engine warning light illuminated and the vehicle suddenly would not accelerate. The vehicle was taken to an independent mechanic, who diagnosed that the number 7 coil pack was defective. The mechanic replaced the number 7 coil pack and the number 7 spark plug to correct the defect. Additionally, the front passenger's side interior door handle would cause lacerations to the contact's hand when attempting to exit the vehicle. The contact also indicated that the dashboard was cracked and there were concerns of the air bags being compromised. The vehicle was not diagnosed or repaired. The manufacturer was notified and no solution was offered. The failure mileage was 40,000.
Misfire in cylinder 1.
Tl* the contact owns a 2007 chevrolet avalanche. The contact stated that while starting the vehicle, he heard a noise coming from under the hood. The vehicle was able to be driven to a private mechanic where the failure could not be duplicated. The vehicle was not repaired. The manufacturer was contacted about the issue. The failure and current mileages were 150,000.
Date of current incidents: 1/3/11; 1/4/11; 7/28/11; 8/23/11; 9/07/11; 12/9/11; 12/16/11; 6/4/12; 6/10/12 and 6/11/12 and 6/l7/12. The engine light comes on; engine reduce power light, stabilizer tract light comes on plus oil light and other lights. I have had it in the shop to try to figure out why my avalanche keeps breaking down. And I was told that they can not find a problem. I was never informed that they have had probems with the wiring. In december 2011 my avalanche shut itself off during a snow storm. Eventually, it started but because of reduced power it would only go between 35-45 miles per hour. I made it to a repair shop, they could not find a problem, but replaced sensors and/or relays. In june 2012 the lights came on, I could only go approx 35-40 miles per hour. Called and set up an appointment. On the way to the appointment the engine oil light came on and the car shut down. I had to call for a tow truck. I took it to a non dealer service repair shop, because they were the closest. When they looked the car over the wires were eaten. I was informed that the newer cars have a soy base in their wiring and that the rodents love to eat this product. Why are they using this soy based wiring? This is not safe. I can not have my vehicle break down leaving me stranded on the side of the road. It is getting very costly when parts are being replaced when it is the wiring that is faulty. I live in the country and I can not keep the mice out of my truck. Please look into why the car manufactures are using this product which is causing major safety and financial concerns why aren't the manufactures informing the public of this problem.
Exhaust manifold bolt heads are breaking off causing there to be an exhaust leak. Pollution recall should be inforced to have gm cover all repairs of the exhaust manifold bolts. Check engine light comes on and vehicle can not pass emissions with this problem.
Traveling at a normal rate and speed on a 5-lane highway. Vehicle loss power, engine lights activated. After maneuvering the vehicle off the highway, I shut the engine off. No signs of smoke or any leaks from engine (topside or underneath). I attempted to restart the vehicle and upon doing so the engine turned over and ran at a rough idle, clearly not on all 8 cylinders. I shut the engine off again. From that point on it was towed. The chevrolet dealership (after 8 days and 449 miles later) then told me they could not find a problem. When they received the vehicle the original codes had been taken by a precision tune mechanic (nearest facility from location of break down) the dealership then informed me they could not duplicate the problem and was apologetic for any inconvenience. I received a bill for $103.95 and my vehicle which had only a 1/8 of a tank of fuel. After a little research I found gm recall no:08048 consequence: may cause electrical features to malfunction. Thanks chevrolet and chevrolet service technicians for taking care of your customers. Unfortunately their dealerships and district specialist do not follow their own executive director of safety who is quoted on the gm website "we always want to make sure customers can count on the safety and quality of their gm vehicle." says, [xxx]. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).
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