One problem related to mass air flow sensor has been reported for the 2004 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Impala based on all problems reported for the 2004 Impala.
My mechanic has been doing a lot of work on this car for the past month trying to figure out why my car completely powers off if I am driving on the road. After taking the diagnostic test again for the 3rd time it says we need two 02 sensors replaced and a new mass airflow sensor. Once we turned the key into the ignition the car began to smoke and burst into flames we pulled the keys out of the ignition and the fire department arrived and tried to put the fire out but gas leaked out and made a huge fire. The car tried to start up and we did not have the keys in the car the fire department had to cut my car battery out because it would not go out. Fortunately my fiance' and I made it out of the car alive. With all of the money I have been putting into this car to have it fixed and it catches on fire this makes me not want to ever purchase another chevy car in my life and I am only 22 years old.