Chevrolet Avalanche check engine light comes on

Filed Apr 21, 2026 · Engine · MS

Traveling hiway on cruise. My 5.3l down shifted to accelerate to go up an incline. Shortly after that there was low to almost no power. Check engine light then came on. I was able to do 30mph on freeway to get it home. Took it to a local garage since gray Daniels chevy wouldn’t service it since I recently transitioned to MS. The problem was the #4 lifter had collapsed. It costed me just shy of $4k out of pocket. I’ve read that this was a recall item for my vehicle, I was never notified. I would like to be compensated if this was indeed a recall item

Filed Jul 2, 2024 · Acceleration, Electrical · AZ

Code p2128 code p2122 have replaced tps, throttle body, accelerator pedal (×3) and bypassed connectors with direct wiring from accelerator pedal to ECM continue to get codes with check engine light with decreased engine power, check stabilitrak, and stabilitrak disabled. Have to clear codes with bluedriver multiple times even while driving short distances and sometimes on start up.

Filed Apr 17, 2024 · Electrical, Engine · 200,000 miles · AR

The contact owns a 2008 Chevrolet Avalanche. The contact stated that while driving at various speeds, the vehicle lost motive power and independently turned off. After restarting the vehicle, the check engine warning light remained illuminated. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure. The failure mileage was 200,000.

Filed Aug 5, 2023 · Electrical, Engine · FL

I am an owner of a 2013 Chevy Avalanche and must say that i enjoy driving this vehicle. The problem that i have is the vehicle has been going into Engine Power Reduced Mode. This mode makes the vehicle hard to accelerate to highway speeds. The vehicle will have a code of P2128 or P2138 which is an accelator pedel ciruit problem. I changed the acceleator pedal and did not solve the problem. I changed out the Throttle Body Sensor and still the problem remains. On the dashboard it will show Check Engine Light on, Service Stablinktrac light on, and Service Traction Control Light on. I have seen other vehicle owners experience the same problems with their vehicles and told that there was no recall and have to pay for the repairs out of pocket. These are very well made vehicles but when they going into Engine Power Reduced Mode, drive ability is diminished.

Filed Mar 6, 2023 · Electrical · 280,000 miles · GA

The contact owns a 2007 Chevrolet Avalanche. The contact stated while driving at various speeds or upon starting the vehicle, the ABS, traction control, and check engine warning lights remained illuminated. The contact stated that the heater and air condition failed to operate. The contact also stated that the dashboard was cracked. The rubber padding for the wires under the hood and under the front driver’s side was dry rotted. The vehicle was taken to an independent mechanic to be diagnosed. The contact was notified of a major electrical malfunction and engine misfire. The mechanic stated that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 280,000.

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 Sep 11, 2022 · Acceleration, Engine · OH

The vehicle is displaying error messages Reduced Engine Power, Service Stabilitrak, Service Traction Control. It also has the related service indicator lights for the Stabilitrak, the Traction Control, and the Check Engine Light is on. There is a service bulletin for this issue that only addresses the 2008-2011 model years, my vehicle is a 2012 and thus not included in the current bulletin and should be added to the covered vehicle list. #11-06-04-007B : Diagnosis and Repair - Malfunction Indicator Lamp (MIL) Illuminated, Reduced Power Message Displayed, DTC P2135 Set - (April 16, 2012)

Filed May 17, 2021 · MO

Having alot of issues with the drain tubes especially with the front top tubes my floor boards are being soaked. The tubes are plastic so when and why for the drain tubes and how often should they be really be changed. The seal above driver door and passenger door in front are not always put in correctly or they move causing the water to cross over and pull into car instead of exiting. And the ac plug also problem. Certain years do not have the cabin filters .The engine light is very sensitive as well.

Filed Sep 2, 2020 · Fuel system · 68,765 miles · GA

Throwing p0430 and p0420 codes on new oem y-pipe catalytic converter assembly. Drove for 101 -140 miles and the check engine light comes on.

Filed Jun 15, 2020 · Driver assistance, Engine · 120,000 miles · MI

Vehicle has 120,000 miles on it and has a random misfire, with traction control and stabiltrack warnings and a flashing check engine light. Engine has excessive oil consumption and runs rough. Installed new plugs and wires, no change. After reading up on these engines I found out that the afm / dod feature is a common failure for these engines. Gm should step up and help owners with some of the repair costs. This is going to be expensive.