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2001 chevy S10: I have a PO440 emission code..PVC valve

 
Dave Nova's Avatar
  • Answered by:Dave Nova
  • Chevrolet Technician
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Customer Question

I have a PO440 emission code on my 2001 chevy S10. I replaced PVC valve, still comes up. Any ideas?

 

Optional Information:
2001 Pick up S10 v6

Already Tried:
Rplaced pvc valve

Submitted: 1723 days and 9 hours ago.
Category: Chevy
Value: $9
Status: CLOSED

Accepted Answer

Picture
Expert:  Dave Nova replied1723 days and 9 hours ago.

The P0440 code is for the evaporative emissions system(fuel vapors). The most common cause of the P0440 code is a loose or non sealing gas cap.

Expert TypeChevrolet Technician
Category: Chevy
Pos. Feedback: 98.0 %
Accepts: 6650
Answered: 9/30/2008

Experience: ASE Master Certification. GM World Class Certification

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