Fuel cap light comes on

Asked by Feb 05, 2019 at 10:25 AM about the 2015 Dodge Dart

Question type: Maintenance & Repair

Service engine light comes on had it check replace 2 gas
cap still comes on idle up and down when first start in
morning

1 Answer

70,665

I'd suspect a vacuum leak that's causing the idle air control valve to seek an idle which causes fluctuation in the idle itself.

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