2004 Tahoe 5.3 weird idle - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Alan's Classic · 11-27-2011, 02:52 PM

I'll do my best to explain this.

Runs great at all RPM's except at idle. At idle it has an erratic skip. Sometimes it is barely noticeable and at other times it drops low enough to make the lights dim. I notice it more when it is warm. When cold it runs smooth.

There are no check engine lights on. It has about 145K on the clock. It also happens with AC on or off. If I two foot it and bring the idle up about 100-200 rpm it is still noticeable.

Any suggestions will be greatly appreciated.

11-27-2011, 02:52 PM	#1
Alan's Classic 1 thing at a time is progress. Join Date: Jun 2007 Location: Ball Ground GA Posts: 5,511	2004 Tahoe 5.3 weird idle I'll do my best to explain this. Runs great at all RPM's except at idle. At idle it has an erratic skip. Sometimes it is barely noticeable and at other times it drops low enough to make the lights dim. I notice it more when it is warm. When cold it runs smooth. There are no check engine lights on. It has about 145K on the clock. It also happens with AC on or off. If I two foot it and bring the idle up about 100-200 rpm it is still noticeable. Any suggestions will be greatly appreciated. __________________ Alan Philippians 2:14-16 Alan's Classic Facebook page. North Georgia Group Project 1965 Vitamin C-10 1995 GMC Sierra K1500 The "Wrecker"

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