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'03 Safari idles rough


93gmcjimmy
12-08-2007, 01:14 PM
I have an '03 GMC Safari with the 4.3l w/ 36,000 mi. It runs great except after it warms up it idles rough. Any ideas? I was thinking a sensor but with only 36k I'm baffled. No codes have been thrown. I just bought the thing from the original owner who was an 86yr old lady.
old_master
12-08-2007, 02:56 PM
Should fall under the factory emission control warranty, ask your local GM dealer.

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