2008 Chevrolet Impala engine problems

Filed May 26, 2021 · Engine, Transmission · NY

car shuts off while in traffic and it says engine power reduced service traction control

Filed Mar 31, 2021 · Engine, Steering · 78,000 miles · NC

Tl* the contact owns a 2008 chevrolet impala. The contact stated while driving 60 MPH and driving over a pothole, the vehicle loss motive power, stalled, and the steering wheel became difficult to turn. The contact was unable to restart the vehicle. The contact stated that there was no warning light illuminated. The vehicle was taken to an independent mechanic but was not diagnosed. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 78,000.

Filed Feb 9, 2021 · Electrical, Engine · 120,000 miles · IN

While wife was driving at normal speed car went into limp mode many times over last few months causing accelerator pedal sensor codes.we have since changed this pedal sensor 6 times and same issue and codes pop up. We also changed throttle body w sensor and connector pigtail.I think there is corrosion in ECM and all these items have failed. These items should have been recalled as manufacturer defects in my opinion.we are still having problems same codes and im not the only one!

Filed Jan 29, 2021 · Engine · 160,000 miles · AL

I was driving on the interstate and the dash lit up service traction system and engine power reduced. I was currently using cruise control so it shocked me when my car went from 75 to 40 quick. I was in five o'clock traffic and almost rear ended. Check engine light came on as well. I'm planning on getting it looked at.

Filed Oct 29, 2020 · Engine · NJ

The car needs and burns too much oil and it's a common problem there's a lot of people complaining about please help I have to change oil every 2 months and there's no leaks or anything just that it burns oil too quick

Filed Jul 5, 2020 · Engine · 104,000 miles · NC

This coolant crossover pipe gasket leak has been a repeated and multiple vehicle problem with the 3.9l and 3.5l and gm only came up with 2 technical service bulletins; the last one was #07-06-02-006e: coolant leaking from engine (replace coolant crossover pipe gaskets) - (mar 5, 2012). However, the new gasket design presumably repaired the leak. However, it did not. I have seen this issue discussed on several web sites with all complaining about the same unresolved issue. My 2008 impala with the 3.9l v-6 has been repaired for this issue on the following dates, each time I was assured it was satisfactorily repaired: 02/09/2019 ' diy due to dealership cost. Repaired per gm tsb/gm technical service manual. 11/30/2016 ' dealership. 03/10/2014 ' dealership. 01/11/2013 ' dealership. And now, it's leaking again! I chatted with chevrolet online on 10 apr 2020 and cecil said that warranty had repaired it once, but the issue has been and still continues. Gm would no longer repair the leak. This is what I was told: cecil at 15:40, apr 10, 2020: unfortunately, once the decision is final that it cannot be changed anymore. But here is what we suggest, you can take the vehicle to a certified gm dealership about this to have it diagnosed and it might the same symptom but different root cause. We cannot perform diagnosis over chat. Cecil at 15:41, apr 10: and for assistance, I highly suggest that you speak with the customer experience manager or cem at the dealership. However, the dealership is the one who told me that it could no longer be covered under warranty! This issue is something gm should have long resolved with a better solution. This leak is a continual problem and gm doesn't offer any better repair options and will not repair the leak again.

Filed May 22, 2020 · Driver assistance, Engine · 150,000 miles · NY

Randomly I receive the message "service traction control - engine power reduced" - there is no rhyme or reason. It happens on nice days, rainy days, whether or not I am going uphill, downhill or on flat surfaces. On at least one occasion while driving on the highway, the engine shut off and I had to coast from lane 2 to the shoulder. After 20 minutes, it restarted.

Filed Jan 17, 2020 · Acceleration, Engine · 220,000 miles · NC

The car is not driving smooth. The car is having multiple problems

Filed Nov 27, 2019 · Engine · 205,000 miles · NC

Tl* the contact owns a 2008 chevrolet impala. The contact stated that the reduce power indicator illuminated and the vehicle stalled. The vehicle was restarted and was able to drive normally. The vehicle was taken to an independent mechanic who diagnosed that the throttle body, throttle body sensor, and fuel pedal sensor needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was taken back to the independent mechanic who diagnosed that the mass air flow sensor failed and needed to be replaced. The vehicle was repaired. The contact stated that the vehicle was taken to the independent mechanic five times for the same failure. The mechanic also stated that the spark plugs failed and needed to be replaced. The vehicle was repaired, but the failure continued. The manufacturer and dealer were not made aware of the failures. The failure mileage was approximately 205,000. The VIN was not available.

Filed Oct 18, 2019 · Acceleration, Engine · 104,000 miles · MO

On interstate driving approx. 60 MPH suddenly check engine light came on, and reduce engine speed light on and car dropped drastically down to literally no power. Barely had time to get on shoulder without causing accident. Went to local mechanic and he said that the issue was the throttle peddle.