2008 Chevrolet Impala: check engine light

Filed Apr 22, 2023 · Transmission · MI

The gas petal sensor is reading a code P2138 (Accelerator Petal Position Sensors 1-2 not plausible). My father has changed the petal not once but twice and erased the code but it keeps coming back. Also getting a p0172 code as well. A Cheverolet dealership has been called and the representative rushed me off phone saying there was not recall for the car. Car was taken to an Autozone and the codes were still coming up. Engine warning light goes off and on every 3 to 4 days after being cleared, then will get a reduced engine power message will appear. Messages warning lights and symptoms started 3 months ago.

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 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 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 13, 2019 · 150,000 miles · ME

2008 chev impala traction control light and then engine light come on. Acceleration and fuel mileage drop significantly. Reoccurs every so often while driving which affects ability to maintain good control.

Filed Jul 1, 2019 · Driver assistance, Electrical · 120,000 miles · WI

Takata recall. When vehicle is started a loud screech happen every time vehicle is started, once vehicle is in motion on highway, street, city.and in motion the vehicle starts alarming and lettimg me know in the information widow check tire monitoring system with tire pressure light consistently on then vehicle alarming sounds again to check stability trak and then it alarm s again with the check engine light that the vehicles engine power has been reduced and vehicle is no longer able to pick up speed right away this has been going on sense I purchased it. Also when im making turns the vehicle will alarm about having stability trak serviced

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 Apr 16, 2019 · Engine, Suspension · 220,200 miles · NC

One day I was driving my car home making a right turn and my engine started making noise and was acting as if it was going to cut off. So I parked my car called my mechanic he came over and looked at the car I said it could be a possible rocker arm that has gone in the car or I could have something to do with the check engine light coming on giving me a code for a cam positioning sensor / solenoid. Also when I purchase the car not too long after me driving I noticed there was some noise coming from my back tires. I couldn't figure it out for a while until one day I looked at my tires and noticed that on the inside there was a considerable amount of scraping going on wearing away my tread. It would always seem to happen when I got new tires on the car so I thought maybe the tires were too big for the car but I ordered what the manufactor suggested the tire size should be for the car. So I had a tire specialist look at it and an alignment specialist look at it and they told me that the suspension springs may be causing my issue. They said that I should not have to change the size of my tire for them to fit because the manufacturer specifications are correct and the tires were the right size for the car.

Filed Jan 12, 2018 · Acceleration · 135,000 miles · IN

I was driving on icy and snowy roads and my engine power reduced warning light came on. I drove several miles to my destination. My car sat for 6 hours. I got in to leave and the engine light was on but not the warning. After driving about ten miles my engine power reduced light came on again. This happened multiple times four years ago and it's very frustrating to have it happening again. It seems to occur more frequently when the roadway is wet. After reading online, it seems this is happening to many other chevrolet cars also.

Filed Mar 17, 2017 · 157,000 miles · TN

Driving down hwy. Check engine light came on. Then flashed reduced engine power and it cut off. Would not start. Let it sit then it started. Also engine has leak and blows oil on the motor

Filed May 24, 2016 · Acceleration, Engine · 13,200 miles · NM

Takata recall. It happen to me twice I got two kids the car lost power from 45 to ten. Engine light is on. The code thst comes up is p2138 this is not ok needs to get fixed. First time it happen I was on a highway the car behind me almost hit me due to the engine power loss.

Filed Feb 29, 2016 · Electrical, Engine · 124,000 miles · IL

I got a jump after the engine light came on. Took it to get ichecked they say its my ECM. What is that and is it related to that electrical recall. I was in park