07 chevy express van running to rich 6.0 liter plugs fouled

Asked by gilly2015 Jul 23, 2015 at 10:13 AM about the 2007 Chevrolet Express

Question type: Maintenance & Repair

van running really rough , running to rich , changed spark plugs and wires , excelerates smoother but idles rough and too rich, any suggestions on what too check next

1 Answer
65,590

firebird338 answered 9 years ago

Clean throttle body and clean or replace Idle Air Control valve.

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