2002 Chevrolet Tahoe Q&A

2002 Chevrolet Tahoe Question: rough idle at cold start

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? -
Answer 1
Any trouble codes stored? Try some fuel injector cleaner. Check for vacuum leaks. -
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