fixing evap

Asked by Jul 02, 2017 at 01:21 AM about the 2007 Chevrolet TrailBlazer LS 4WD

Question type: Maintenance & Repair

Gas cap light

3 Answers

119,985

Did you replace the gas cap?

1 people found this helpful.
67,755

Gas cap and purge valve are the 2 most likely faults. Could also be a damaged or loose hose in the evap system possibly at the vapor canister.

1 people found this helpful.
81,335

You'll need to have a smoke test done. Some EVAP leaks can be so small you can't see it with the naked eye. HTH. -Jim

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