2008 Chevrolet Avalanche engine problems

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 Dec 11, 2020 · Engine · 142,255 miles · MN

I have a 2008 chevy avalanche ltz with the 5.3l v8 engine with adaptive fuel managment. It was purchased used with 120k miles. It became apparent that the engine was consuming oil, 1-2 quarts per 3000 miles. Recently the engine started producing white/blue smoke on start up and oil consumption increased to 2-3 quarts in 1500 miles. My vehicle is currently at a mechanics shop and I am told that for starters I will need new valve covers that are redesigned from the original ones and that excessive oil consumption is common on this engine. I have read of other owners that have had to have pistons/rings, valve covers replaced, and a baffle placed into the oil pan to mitigate the oil consumption. This seems to be a fairly common occurrence that isn't a typical maintenance issues since these parts weren't oem when the vehicle was made. It seems unacceptable to have to have oem modifications completed out of my pocket for something that seems to be identified as an issue with specific parts made to mitigate the issue. I am very concerned what this acceptable oil consumption will mean for the longevity of my engine.

Filed Jun 17, 2020 · Airbags, Body · 80,000 miles · IL

Stress fracture in front dash pad around air bag cover... Extremely noise lifters on startup !

Filed Feb 17, 2020 · Electrical, Engine · 202,000 miles · IN · fire

My wife drove the truck to walmart to get a couple of items with her were my son in law and daughter. Once arriving there(approx. 3 mi) they noticed some smoke coming from under the hood. My son in law opened the hood to discover a fire, he then ran into walmart where an employee grabbed a fire extinguisher and put out the fire. After they got home I checked it out and the wiring harness that goes to the mass air flow sensor was completely melted. It was still in all th he factory tie downs and wasn't touching anything that could have chafed it or pinched the wires. The truck was on city street then in parking lot

Filed Aug 19, 2019 · Engine, Steering · 156,693 miles · FL

Tl* the contact owns a 2008 chevrolet avalanche. While driving 40 MPH, the steering wheel seized and the vehicle shut off. The vehicle began to roll down the street. The contact stopped and shut off the vehicle. Upon restarting the vehicle, the check engine indicator illuminated. The vehicle was driven to an independent mechanic, but could not be serviced. The vehicle was then driven to vera cadillac (300 s university dr, pembroke pines, fl 33025, (954) 998-1684) where the mechanic stated that the contact would have to pay for the repairs. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and did not assist. The failure mileage was 156,693.

Filed Jul 23, 2019 · Engine · 142,000 miles · WI

Drove to post office, it was normal till I made a u turn on city street then engine ran very rough and engine light came on blinking, plus service stabilitrak & service traction control also appear on dash. Drove home immediately as truck wont shift to high gear. Check code and it said p0307 cyclinder #7 misfired look up google to see if I can repaired it myself as read to replace plug, wire and coil for cyclinder #7 so I did it still same problem. Took to mechanic to test my truck and fail compression test. Mechanic talk to me as I bought the truck last year and still paying for it. Describe to me of what is possible so told him to fix it he say that there are about 2000 truck which have same problem I have.

Filed May 11, 2019 · Engine · 190,000 miles · MD

I drive my truck on the weekends only and at least twice a year I have to replace cylinder #7 spark plug all of the time, also got the oil pressure switch and the filter replaced twice and I get a tapping sound at idle due to the low oil pressure reading on the dash, and it has happen right after an oil change, last but not lease the cracking of the dashboard.

Filed May 1, 2019 · Engine · 153,000 miles · TX

The active fuel management (afm) system has failed causing the motor to lose combustion in one of the afm cylinders (cylinder 7 to be exact) due to the afm lifter failed and has jammed the exhaust valve open. Gm is aware of the issue and has had several complaints to fix. Everyone with the afm system from gm for around my model year have had similar problems or have completely lost the motor

Filed Feb 22, 2018 · Engine · TX

Tl* the contact owns a 2008 chevrolet avalanche. While driving approximately 20 MPH, the vehicle stalled as the check engine warning indicator illuminated. The vehicle wa able to restart after several attempts, but the failure recurred several times. The vehicle was taken to an independent mechanic where it was diagnosed that the engine needed to be replaced. A local dealer was not contacted. The vehicle was not repaired. The manufacturer was made aware of the failure and offer any further assistance. The failure mileage and VIN were unknown.

Filed Aug 30, 2017 · Engine · 85,300 miles · AZ

Tl* the contact owns a 2008 chevrolet avalanche. While driving at an unknown speed, the low oil indicator illuminated. The vehicle was taken to sands chevrolet (5418 grand ave, glendale, az 85301) where the dealer stated that the contact needed to get more frequent oil changes. The vehicle was not repaired and the failure continued to recur. The vehicle was taken to courtesy chevrolet (1233 e camelback rd, phoenix, az 85014) where it was diagnosed that the roller lifters failed, causing damage to the camshaft and the piston rings to collapse. The engine mounts also collapsed and the engine needed to be rebuilt. The vehicle was repaired. While driving 65 MPH, the vehicle shook and the check engine and check traction control indicators illuminated. When the contact attempted to accelerate, the vehicle jerked and hesitated. The vehicle was taken to an independent mechanic where it was diagnosed that the cylinder lifters for cylinders 1, 4, 6 and 7 failed due to an issue with the pressure release valve in the active fuel management system. The lifters needed to be replaced. The vehicle was then taken back to courtesy chevrolet where the diagnosis and repairs were confirmed. The vehicle was not repaired. The manufacturer was made aware of the failures and stated that they would not assist. The contact was advised to speak with the federal safety agency. The approximate failure mileage was 85,300.