2001 Chevrolet Blazer Q&A
2001 Chevrolet Blazer Question: Keep getting P0440 code
Surely the gas cap has been replaced with one from GM. SURELY. Have seen aftermarket caps fail right out of the box! - pushrod
I keep getting the 440 code. had vapor lines replaced after smoke test. light came back 3 days later. had vent valve replaced, light still came back on 2 days later. i fill up, i turn gas cap like ...