2007 Chevrolet Impala: check engine light

Filed Sep 16, 2023 · Electrical, Engine · PA

I started for the first time in early June of having reduced engine power. At this time I get several warrning lights on dashboard. I get engine power is reduced, traction control and engine light. The car goes into limp mode. I replaced the accelerator pedal position sensor after the first event. Since this time I had it happen 4 more times. This situation can be dangerous if a car is behind me and I slow up real quick due to going into limp mode. I try to pull over where I can when this happens. Once I pull over for 10 minutes the car will resume like normal driving with just the engine light on. The next day the engine light usually leaves. It is hard to know when this will occur but it can be a dangerous situation to be in.

Filed Jul 18, 2022 · Acceleration · TX

Check engine light Code p2138 Change the throttle pedal position sensor the next day the car dropped down to 5 to 10 mph information center said engine safety been reduced to 5 to 10 mph plus my traction control light came on then information center said service traction control put my old throttle pedal position sensor back on and it turn traction control light out and the car went back to driving normal don't know how long its going to last before it goes back to 5 to 10 mph and the information center says engine decelerate to 5 to 10 mph.was on highway in Texas had to get over on shoulder quick car just slow down quick and pedal was to floor. Also keep failing state inspection due to failed OBDII test ( see vir).

Filed Jun 24, 2019 · Electrical · TX

Takata recall. Ignition key stays stuck won't release key I've seen so many complaints on this issue and the gas cap makes engine light come on what's going on!!! I'm on 2nd gas cap

Filed Apr 30, 2019 · Electrical · 150,000 miles · ID

I have had this problem and I know a lot of others are having it too. When I'm driving the car's check engine light will come on will randomly and code saying engine power reduced. My car's engine power will reduce and I will no longer be able to accelerate and the car slows down. This happens at random times: on the freeway, in town, at stop lights, going up hills, on flat ground, when I first turn my car on, after driving for 5 hours. There is no pattern. After I turn my car off for a couple minutes, the light turn off and my car runs ok again. It happen at least once a week, but sometimes 4 or 5 times week.

Filed May 15, 2018 · Driver assistance, Engine · 112,000 miles · KY

I recently purchased a 2007 chevy impala, 3 weeks after purchase while on the highway, the car suddenly slowed down to a crawl, a reduced engine light came on the dash, being as we were on the highway to suddenly only being able to go 20mph was very frightening!! I was able to get the car to the side and had to have it towed home. After searching this issue online I found thousands of complaints from people with the same issue with this same car. I find it strange there was not a recall for this due to it being a serious safety issue. After calling a chevy dealer, they told me all they could do is hook it up for diagnostic tests but it would cost 175.00 just to do that. This vehicle is still parked and we are unable to drive it and still have no idea what's wrong with it. I'm very concerned about driving it again for fear of this happening again and us maybe not being as lucky next time!!!! Serious issue with thousands of complaints online. Simply type in 'reduced engine power' make model and year of car and many people have had this same issue!!!!

Filed Apr 20, 2017 · Engine, Transmission · 94,101 miles · FL

Vehicle was in motion in the middle of a very busy intersection, thank god it was at night. The car started violently shaking and the display put up the warning "low engine power" and "service traction control".has happened numerous times before when the car was parked but never while driving. Check engine light comes on for a little bit but then usually goes away after a day or so.

Filed Apr 8, 2016 · Engine · 178,000 miles · MI

In december my car while driving, I experienced reduced engine power the speed immediately dropped without warning and the car cut off. I was stuck in the middle of highway traffic praying that we would not be hit when everyone is doing 70 MPH. When the reduced power light comes on the engine light comes on along with the traction light. I took the car to the dealership to only be told that they are not 100% sure what the problem is, but I can start by replacing the PCM module and that may or may not fix the problem. I have a problem with a chevy dealership not knowing what is wrong with they cars. Especially a car that is having this problem with so many of its car across the nation. This is a huge safety issue. I have been inconvenience since december as I have not been able to drive my car after having this issue and not feeling confident in $1,000 repair that the dealership themselves are not sure is going to fix the issue. I went to the dealership to get to the root of the problem in hopes of getting a solution and solid plan. I think that gm need to be held accountable for this issue and found a good solid solution to the problem and not guessing fixes to make money. We are talking about people lives are being put in danger. Like I felt mine was when you are in the middle line on a highway, where the speed limit is 70 MPH and your car reduce power and then shut down.

Filed Dec 15, 2015 · Engine, Steering · 118,000 miles · MS

Tl* the contact owns a 2007 chevrolet impala. While driving at various speeds and accelerating, the vehicle stalled, the steering wheel locked up, and the check engine light illuminated on the instrument panel. The contact stated that the failure occurred intermittently. The vehicle was taken to an independent mechanic for diagnostic testing; however, the failure could not be duplicated. The manufacturer was not made aware of the failure. The failure mileage was 118,000.

Filed Nov 16, 2015 · Fuel system · OH

Fuel system, gasoline I check many times the mechanic always said there is a leak fuel system and the engine light is on

Filed Aug 26, 2015 · Engine · MI

While starting my car the vehicle began shaking and the engine light came on. There was also a message stating engine reduced power. This is not the first time I had this happen. Previously I had this occur and I took my car to get serviced. The mechanic at the repair shop tested for codes and it stated the throttle body. I had that replaced on to turn around and have the same problem two days later. I recently searched this issue online and noticed I'm not the only person with this issue. I called gm and the representative informed me that unfortunately there wasn't a recall on this issue. This is very unsafe and I'm afraid to drive this car. I travel a lot on the freeway and I would hate for the car to stop while driving with myself and children inside. This vehicle complaint really needs to be addressed before someone gets killed.

Filed Aug 18, 2015 · Acceleration, Engine · 140,000 miles · TN

While driving my vehicle, the traction control light and check engine light came on...then a message stating "engine power reduced" came on. My car dropped the speed from 60 to 20, on the highway. It happened again a month later and I was told that my accelerator pedal needed to be replaced. This happened again in march of this year, and I was told my fuel pump had gone out. Now it has happened again this morning, and the mechanic doesn't know what's wrong with it because it happens intermittently so he can't diagnose it unless it does it while the car is in his possession.

Filed Jul 9, 2015 · 75,000 miles · MI

The check engine light keeps coming on, the scope says vapor leak, I was told to replace the gas cap, so I did and had the engine light turned off. It came back on about 2 weeks later, so I went and bought another gas cap and still the engine light comes on. With the engine light on my start engine button wont turn the engine on for me. Is there any recall for something like this?