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#1
02-06-2008, 04:30 PM
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Running rich at idle
99 Tahoe 5.7. No check engine light. Started running rough at idle (only at idle) Looking in the mirror I can see black smoke coming from exhaust. What could this be?
Thanks 
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#2
02-07-2008, 04:05 PM
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Re: Running rich at idle
Quote:
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#3
02-07-2008, 11:20 PM
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Re: Running rich at idle
A leaking fuel pressure regulator or high fuel pressure can also be the problem.
//2000CAYukon
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