Chevrolet Impala DF040 Engine Trouble Code
Theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.
Chevrolet Impala DF040 Code Meaning :
For Engine
Injector Circuit Malfunction - Cylinders
Cylinder 10 Contribution/balance Fault
Reverse Input Circuit

When you check Chevrolet Impala car engine light came on code DF040 the reason should be . However manufacturer may have a different definition for the DF040 . So you should chech it on our car models.
DF040 Description
DF040 engine trouble code is about Reverse Input Circuit.Reason For DF040 Code
The reason of DF040 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.DF040 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.
DF039 Previous Engine Trouble Code For Chevrolet Impala | Next Engine Trouble Code For Chevrolet Impala DF046 |