idles problems

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01-01-2008, 02:43 PM

martinblazer95

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Join Date: Dec 2007

Posts: 4

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idles problems

i have a 95 blazer when i turn it on it idles fine but after 1 minute or so it idlesrough and gets about 2500 rpm.then it drops back to about 1000 rmpand then it idles up and down and sometimes itwill die?

01-01-2008, 04:32 PM

Chevy Lover

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Join Date: Jun 2006

Location: Vancouver. B.C. Canada

Posts: 3,429

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RE: idles problems

Sounds like a vacuum leak. Check all you're vacuum hoses and connections.

01-02-2008, 10:52 AM

swartlkk

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Join Date: May 2005

Location: Waterloo, NY

Posts: 41,137

RE: idles problems

*Moving to 2nd Gen Tech*

I would start by removing the IAC valve from the throttle body and giving it and its bore a thorough cleaning. Erratic idle like that can be caused by a vacuum leak, but even a vacuum leak should smooth out to a set RPM...