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Old 11-19-2006, 12:21 AM
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Re: 2003 Yukon Rough Idle

Quote:
Originally Posted by maxwedge
Sounds like air is entering the engine behind the maf and not being sensed ,of course this drives the mixture to lean. Bad tb gasket, vacuum leaks and so on. Yes I'd go back to square one also.
Thanks, I was a bit concerned about the cheaply made paper gasket that came with the Poweraid TB spacer so looks like I'll try to spray a little carb cleaner around it and see if the idle cleans up- that'll help narrow down the possibilities. I'll also see if I can get a better TB gasket to go between the TB and the spacer. I wonder if this is a known problem with AirRaid?
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