what is 442 code on 05 chevy impala

Question

car is a 05 chevy impala with obd2 code of 442,need to know what code is.

Answer 1

Hi there

Basically this code indicates there is a small leak in the evap system. The most effective way to test for this is with a smoke test. Smoke is put into the evap system, then a very powerful light is used to locate the leak. Then you can perform the proper repair. Most of the time this is less expensive then putting parts on it. I would however start with the gas cap.