2007 Chevrolet Avalanche: sudden loss of power

Filed Feb 28, 2023 · Electrical, Engine · 195,000 miles · IN

The contact owns a 2007 Chevrolet Avalanche. The contact stated that while driving at various speeds, the vehicle stalled. The check engine warning light was illuminated and a message indicating that the vehicle was in Reduced Power Engine mode was displayed. The contact veered to the side of the road and turned off the vehicle. The contact stated that he disconnected and reconnected the battery and was able to continue driving. The contact stated that the failure had been reoccurring while driving. Additionally, the contact stated that the vehicle made abnormal clicking sounds. The contact stated that the check engine, traction control, ABS, stabili-trak and other unknown warning lights were illuminated. The contact stated that the transmission was slipping, and the vehicle would jerk while driving. The contact was able to continue driving. The vehicle was taken to an independent mechanic, where the spark plugs, brake light switch, and transmission oil filter were replaced; however, the failure persisted. The dealer and the manufacturer were not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 195,000.

Filed Jan 6, 2020 · Driver assistance, Engine · 85,000 miles · TX

Stabilty light came on, loss of power, check engine light, rough shifting into 2 gear. It has been down for 2 years. And not fixed yet, chevy dealership does not know what tpo do. There needs tobe a recall on the flex fuel. We were going down I-20 when all this happened. There was nearly an accident

Filed Jul 3, 2019 · Driver assistance · IL

Stabilitrak and reduced engine power comes on at rates of sometimes 3-4 times per day. No common denominator I.e. Weather, road conditions, time of year..can be driving down interstate at 70 MPH or sitting idle in park. This is very dangerous when driving loved ones around. Unfortunately I've gone as far as having a diagnostic computer hooked up at all times so I can clear the computer every time it happens in order to drive again. I've had the throttle body cleaned, changed. Computer changed and reset twice...nothing has helped. This has been happening for years someone needs to address this before someone is severely injured or worse

Filed Jun 17, 2012 · Electrical, Engine · 72,266 miles · IA

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.

Filed Mar 8, 2012 · Electrical, Engine · 77,912 miles · MD

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).

Filed Dec 30, 2008 · Body · 00

My 2007 avalanche demonstrates a popping and creaking noise from the front end while in 4 wheel drive and turning a sharp corner. This noise is accompanied by a felt binding in the steering wheel and a feeling of a loss of power.