2010 Chevrolet Impala engine problems

“I started my vehicle in the morning to let it warm up. I come back out to get myself and my son in the vehicle to go to work and take him to school. My dash upon entry had a check engine light on, and the message it displayed was "engine power reduced." I put my car into reverse, having no choice but to drive it and the traction control went out. My father in law pulled the code and it said something about the accelerator sensor. This is a known issue and recall in other models and I wanted to report it is also happening in my model.”

“The contact owns a 2010 Chevrolet Impala. The contact stated that while driving at various speeds, the front-end of the vehicle would lower and the front end was unstable. In addition, the check engine warning light would remain illuminated. The vehicle was also consuming an excessive amount of engine oil. The engine fan had failed and the transmission was faulty. No further information was available. The cause of the failure was not yet determined. The local dealer and manufacturer were not notified of the failure. The failure mileage was 120,000.”

“The car can have moments of power loss where the speedometer suddenly, erratically spikes while the tachometer slightly lags. It almost stalled my vehicle while transmission was in drive while stopped. It feels like dragging when the power loss occurs. This has occurred randomly for the past month, mostly during interstate driving with cruise control operating. It has happened the last six times I have driven, but the previous several times it did not occur. It also occurred in a similar random fashion for the prior two weeks. When it does occur it feels like power drain and deceleration that can last a second and this will occur several times during a twenty minute drive at 70mph. Mechanics at two shops seem confused and don't know where to begin except for a transmission fluid flush. That was completed and the problem has persisted. There are no related error codes. To lose power suddenly and unexpectedly could cause an accident especially if a system failure shuts off the vehicle while driving. This vehicle has had an oil consumption/burning problem since I bought it with around 60,000miles. It needed 2 quarts of oil added between the last oil changes. I…”

“AUTO TOTALED SEPT 8, 2020. LOST CONSCIENCE WITH TAILPIPE LOOSE AT BACK OF CAT CONVERTER. DIAGNOSED WITH LOW BLOOD SUGAR AT HOSPITAL. SEVERE INJURIES: SPINAL, RIGHT ARM, LEFT LEG. DO NOT REMEMBER ACCIDENT, EVEN TODAY. TOOK DOWN ELECTRIC POLE AND PINE TREE. DO NOT REMEMBER IF WINDOWS OPEN OR CLOSED THAT DAY. MAY HAVE BEEN COMBINATION OF CO FROM EXHAUST AND BLOOD SUGAR. RURAL STREET, TOWN IN MAINE.”

“SOMETIMES WHEN DRIVING AN "ENGINE REDUCED" WARNING WILL POP UP AND WHEN IT DOES SO, THE CAR LIMITS THE AMOUNT OF POWER APPLIED WHEN ACCELERATING. I HAVE TO TURN IT OFF AND SIT A FEW MINUTES BEFORE IT GOES BACK TO NORMAL.”

“THE DIAGNOSTIC REVEALED THAT THERE ARE 11 CODES IN THE VEHICLE SYSTEM. THESE CODES RANGED FROM PASSKEY SYSTEM FAILURES TO EVAP CODES TO TRANSMISSION. SUSPECTED FAILURE OF WIRING HARNESS ALTOGETHER WITH POSSIBLE BCM/CAM FAILURE AS WELL. DURING BATTERY TEST THERE WAS A REGULAR DROP IN VOLTAGE WHILE CONNECTED TO THE SCANNER REFLECTING A DRAIN IN THE ELECTRICAL SYSTEM THAT COULD FURTHER BE CAUSING AN ISSUE. CODES ARE P0513 , P0523 , P0700 , P2122 , P0411, P0449 ,P0455. WHEN DRIVING STABILITRACK, ENGINE POWER REDUCED, AND STABILITRACK TRACTION CONTROL. SOMETIMES THE CAR SHUTS OFF WHILE DRIVING AND THE STEERING WHEEL WILL LOCK , I'D W OK OLD HAVE TO PULL OVER ON THE SIDE OF THE HIGHWAY OR STREET AND POP THE HOOD JUST TO GET THE CAR STARTED AGAIN.”