2008 Chevrolet Impala acceleration problems

Filed Jan 18, 2021 · Acceleration, Electrical · 186,000 miles · OR · crash · fire · 1 injury

In motion on a city street turning left , pedal stuck brakes not working and hit by on coming car , flipped in air about a block , rolling over again and again , no air bags depleated, broken ribs, concussion, skin lacerations , bruises,glass logged in parts of body , face and feet

Filed Jul 2, 2020 · Acceleration, Electrical · 156,466 miles · IL

When first purchased I had to change accelerator pedal. When I took it to the shop I was told they get a lot of people w impalas same as my year 2008 that needed to have the accelerator pedal changed every so often because they would go out and it would cause the check engine light to go on and off because the vehicle was sending the wrong signals.I would drive on the highway and street it would cause reduced engine to come on and slow my car down almost leading into accidents because I did not know it was about to happen. It would come and go on as it wanted. The electrical part of the car is something in the car continues to drain my battery. I've gotten a new battery and it still drains causing me to have to get it recharged. The suspension I was also told for the year of my car is bad. When purchased I found out that again people that purchased these years of vehicles had problems with the control arms and that I now have to take it to get fixed because one hit to a pot hole can cause the under part of the car to break and cause a bad accident. I did not know impalas had this many problems. I seen the police impalas for 2008 were recalled for suspension, but they all seem to share this common problem as well as the actuator continuously clicking. It seems to be an easy fix, but I shouldn't have to fix something that is a common problem for the impalas.

Filed Mar 25, 2020 · Acceleration, Driver assistance · 169,000 miles · MD

The stabilitrak is making the car shake and act crazy. I'm barely in control of the car. There are thousands of more people having the same problem. The car reduces speed because of this issue. Many groups and blogs online about this. Why hasn't anything been done about this? No recalls or anything.

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

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

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.

Filed Oct 9, 2019 · Acceleration · 177,000 miles · KS

While driving on highway my car will reduce engine speed it will drop from 65mph to 20mph sometimes it shuts clear down . I have so far almost been in two collisions because of this.

Filed May 14, 2019 · Acceleration, Engine · 110 miles · MA

Driving on highway @ 60 MPH when engine dies with no warning. Dash shows following messages: "engine power reduced" "serivce traction control" "service stabilitrax" power steering and power brakes stop working. When car key is turned off and check engine codes are cleared, the car starts up fine and continues to run smoothly. Luckily I was able to safely stop the car (albeit on the middle of a major highway), turn it off, clear the codes, and start it back up to get out of the way. Same problem happened in january 2018. After this I took it to a chevy dealer. They said car was covered under "warranty" for this problem and they replaced the throttle body. One month later same problem keeps occurring. Car runs fine but these messages appear about once a month. Typically the engine stays on and is only limited in power. However, occasionally the car will die completely without warning, even on the highway. Had car brought to chevy dealer. They said they can not fix the problem unless it is currently occurring with the car. They recommended I take the car and bring it back to them when the problem happens again. However, I do not feel safe driving this car knowing the engine could just shut down at any moment and the chevy specialist themselves do not seem to even have a clue about what could be causing this.

Filed Jan 29, 2019 · Acceleration, Engine · NC

Vehicle hesitates throttle body causes car to jerk cut off not pick up speed always idled up speed sensor reads 107 MPH when only going 30mph stalls. Almost was rear ended because car shut off in the middle of driving.I have my car regularly serviced and all of a sudden this started happening. My blendoor aculater cause my heat not to sometimes come on and it makes this loud clicking noise. Most if no all impala have this problem and gm knows about all the things I told you about yet they dont wanna recall the vehicle

Filed Jan 24, 2019 · Acceleration, Engine · 97,000 miles · PA

While I was driving, the car gave a notice of reduced engine power, then a few miles later, another notice came on service throttle disabling service. And the car shut off! With no warning, and no way to get to safety. If I wasn't in an area that had a shoulder I could get to quickly or if there was any traffic near me, I would be dead! This is incredibly unsafe and is going to get someone killed, if it hasnt already! That has to be some sort of flaw in the programing. If I would have been on the highway, which is where I normally am at that time of day, I would have had no time to react and get to a safe area before the car shut down on me. It also locked up the steering wheel and braking system so I had next to no power. It was incredibly scary. I am just glad that I was driving the car, instead of my elderly mother. She very well may have had a heart attack from the fear. In no way should a car just shut down mid-drive like that! I cant even begin to explain the amount of ways how badly that could go wrong, and this seems to be a common issue with chevy vehicles and the throttle body. Even if the throttle body is going bad, in no way should your car be programed to just shut off mid-drive, ever. I really hope that is a programing flaw and not intentional, because if that is intentional, you are truly trying to kill people. What is it going to take for chevy/gm to get the issue fixed? How many people getting killed in unnecessary accidents is it going to take? I pray that myself or my family isn't one of them! Please chevy/gm, get this issue fixed already.

Filed Jan 14, 2019 · Acceleration, Electrical · 80,000 miles · IN

Tl* the contact called on behalf of the owner of a 2008 chevrolet impala. On several occasions, the vehicle failed to start and the reduced power warning indicator illuminated. Additionally, while driving 55 MPH, the vehicle stalled. The contact was unable to restart the vehicle. The contact stated that the failure was intermittent. The vehicle was diagnosed by an independent mechanic and fault code: p-2135 was retrieved. The mechanic replaced the ECM, throttle body, accelerator pedal mechanism, and the wiring harness between the ECM and throttle body; however, the failure recurred. The dealer and manufacturer were not contacted. The approximate failure mileage was 80,000.