2008 Chevrolet Impala: hesitation when accelerating

Filed May 6, 2019 · Electrical, Fuel system · 125,000 miles · AR

Hesitation during acceleration

Filed Mar 27, 2019 · Engine, Transmission · 85,000 miles · NE · crash · 2 injuries

Tl* the contact owns a 2008 chevrolet impala. While attempting to accelerate, the vehicle hesitated and jerked forward. The contact took the vehicle to gregg young chevrolet (17750 burt st, omaha, ne 68118, (402) 509-3028) twice, but they were unable to diagnose the failure. On one occasion, the contact's vehicle lurched forward and crashed into another vehicle that turned in front of the contact. The crash was a t-bone collision. A police report was filed. The contact and other driver were injured and transported to the hospital for medical attention. The vehicle was towed to huber cadillac (11102 w dodge rd, omaha, ne 68154, (402) 496-5400), but the cause of the failure could not be determined. The vehicle was taken to an independent mechanic who replaced the fuel pump, spark plugs, coil, and fuel injector (twice); however, the failure recurred. The failure mileage was 85,000.

Filed Mar 15, 2019 · Transmission · 60,000 miles · LA

When taking off from stop the car hesitates and jerks hard and sometimes 10 to 15mph will quit accelerating and then jerk then takes off. State highway.

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 Sep 16, 2015 · Transmission · 100,000 miles · TX

Tl* the contact owns a 2008 chevrolet impala. The contact stated that the transmission gears hesitated to change and the gears were slipping. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 100,000.

Filed Jul 25, 2015 · Driver assistance, Engine · 103,000 miles · NY

While I was driving my car, about to accelerate, all of a sudden, a "service traction control" message came on and seconds after that, there was a "engine power is reduced" message. At this point there was some hesitation in the vehicle. I pulled over and shut the car off. When I turned the car on, after 2 minutes, I received the same message. I took the vehicle to my mechanic, and he couldn't find anything wrong with it. I called my locale gm dealer and for a "nominal" charge, they would take a look at it. Since then, I have researched it on line, and have found that there have been numerous complaints about the same issue. It is a shame that gm has done nothing to fix this. I'm glad I was not on the highway when this happened, as the loss of speed and lack of acceleration could have caused an accident.

Filed Jan 22, 2015 · Acceleration · 75,000 miles · OH

Tl* the contact owns a 2008 chevrolet impala. The contact stated that when attempting to accelerate from an idle position, the vehicle briefly hesitated and jerked violently. The contact stated that on one occasion while driving 45 MPH, the failure occurred and the vehicle independently decelerated. The vehicle failed to accelerate higher then 5 MPH. The check stability tract and engine power reduced warning indicator illuminated on the instrument panel. The vehicle was taken to the dealer on 3 occasions. The dealer was unable to diagnose or replicate the failure. The vehicle was not repaired. The failure mileage was approximately 75,000.

Filed Oct 14, 2014 · Acceleration · 210,000 miles · MI

Tl* the contact owns a 2008 chevrolet impala. While attempting to accelerate, the vehicle hesitated and failed to respond before operating as normal. The vehicle was taken to an independent mechanic who was unable to duplicate the failure. The manufacturer was notified, but no solution was offered. The failure mileage was 210,000.

Filed Jun 22, 2014 · Engine, Transmission · 32,000 miles · OH

I was at a stop sign, when I went to pull onto the highway, the transmission slipped and hesitated! I took it to gm dealer and was told they could find no problem with it! It would actually have to go bad before they could do anything about it! Now I have 68000 miles on it, and the problem happens daily! Two days ago, when pulling on to the highway, it hesitated again, but this time there was a semi coming! Luckily it finally took hold and I could proceed! I saw on the internet, that this is a common problem for this vehicle!! Why, doesn't gm fix it?? Also, I have had my car in for engine problems, they have removed the engine from the car, and "decarboned the cylinder"! Now about 30000 miles later it has the same problem again!

Filed Apr 21, 2014 · Engine, Suspension · MD

2008 chevrolet impala. Consumer writes in regards to transmission failure. *smd the consumer stated the vehicle was purchased in sept 2007, and in sept 2009, the transmission had to be replaced. The vehicle was covered under 100% warranty and she was given a rental car. The transmission was replaced a for a second time, and lasted until march 2014. The consumer stated the transmission was replaced for a 3rd time and it hasn't even been 7 years. The consumer stated the vehicle would hesitate from a stop. The dealer also stated the vehicle needed engine mount and stabilizer links.

Filed Mar 15, 2013 · Driver assistance, Electrical · 92,578 miles · TX

On march 14, 2013, we were accelerating from a complete stop when the service engine light came on and a message appeared in the message console that read "engine power reduced." it was difficult to get the vehicle to accelerate at first, but it then responded after a few seconds. The 'service engine" light stayed on. We took it to an automobile parts store so they could pull the code with a code reader. The vehicle parts store was able to pull a code reading p2138 which is for the throttle position sensor. Later on that night, I went online and did some research and discovered that there are many owners of 2008 chevy impalas with the same problem. In the past year, there have been several occasions when my 2008 chevy impala tends to buckle and jerk or hesitate when accelerating from a complete stop making difficult to nearly impossible to navigate out of the way of traffic. Is there any way a recall can be issued for the throttle position sensor and the gas pedal so this issue can be resolve for all owners of 2008 chevrolet impalas? Please help.

Filed Aug 17, 2011 · 60,000 miles · FL

While attempting to accelerate from a stop, the vehicle hesitated before jerking into gear. The vehicle was taken to an authorized dealer where they were unable to diagnose the failure after driving it over 140 miles. After licking up the vehicle, the vehicle continues to intermittently hesitate while accelerating and would jerk in various gears. The first failure mileage was around 60000 and the currurt mileage is 88000. Also sometimes would jerk from 1st gear to second gear. I have contacted the dealership again to again check out my problem. The car is still in the warranty period. After researching this problem online that other people have posted, it all seems to point to a pressure solenoid in the transmission but the dealership will not replace the part unless they can duplicate the problem.