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2002 Chevrolet Tahoe Question: rough idle at cold start

 

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bennfun, Loudon, TN, April 13, 2009, 19:14
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123,000 miles. Engine idles rough at cold start unless I increase to 1500 rpm for 1-2 minutes, then fine. Replaced plugs, wires, filters, cleaned fuel system, yet problem persists. Any suggestions?

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  • Answer #1

    lawrenceg April 19, 2009, 00:08
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     Master

    Any trouble codes stored? Try some fuel injector cleaner. Check for vacuum leaks.

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