Fuel System
Check engine light, sensors (includes O2 or oxygen sensor), emission control devices (includes EGR), engine computer, engine computer, fuel cap, fuel gauge/sender, fuel injection system, fuel pump, fuel leaks, stalling or hesitation.
What Owners Say
"CHEVROLET as had issues with the high pressure fuel pumps on the Impala. They currently have a national back order on this part. I have been waiting for a month for the part and so I am paying for a vehicle that I can't drive. Fail on GM's Part."
Jim-Jennifer P., IA (2016 Chevrolet Impala LT 3.6-L V6)"Replaced fuel pump under warrently"
John C., MI (2016 Chevrolet Impala LT 3.6-L V6)"Fuel pump failed"
Gerald B., MI (2016 Chevrolet Impala LT 3.6-L V6)"Engine lamp appears brought to dealer charge close to $1500.00 to replace fuel pump and hoses and clean fuel injectors due to clogging. Techician could not explain why my fuel pump and lines and hoses became defective and why injectors were clogging."
Anonymous, NY (2016 Chevrolet Impala LTZ 3.6-L V6)"Sensor failure repaired in local garage,$90"
Anonymous, CT (2016 Chevrolet Impala LS 3.6-L V6)"Got a trouble code from the cars computer which stated the upstream o2 sensor was not working properly. I purchased a new sensor and installed it. That fixed the problem."
Anonymous, MO (2016 Chevrolet Impala LS 2.5-L 4 Cyl)"oxygen sensor failed twice"
Anonymous, NJ (2016 Chevrolet Impala LTZ 3.6-L V6)"engine check would come on. it started from the time I purchased the vehicle. I had problem fixed and then found out it was a recall for the car."
Anonymous, VA (2016 Chevrolet Impala LTZ 3.6-L V6)
"During very cold weather the car started okay, was driven 15 km and then stopped for half an hour. When trying to restart the car would not start. After several tries the engine started but was not running on al cylinders. I managed to limp home. The next day it started and ran fine. Took car to dealer and they replaced two relays that control the power to the fuel injection system."
A J., ON (2016 Chevrolet Impala LT 3.6-L V6)