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Gunny · 10-01-2015

Check your vac hose connections at the back of the plenum. Not easily seen & easily overlooked but can come loose, especially if you have a back fire during startup. Had this happen once and it played havoc with drivability until it was re-connected.

10-01-2015	#6
Gunny Join Date: May 2005 Location: Georgia Mountains Posts: 925	Re: Very High Idle Check your vac hose connections at the back of the plenum. Not easily seen & easily overlooked but can come loose, especially if you have a back fire during startup. Had this happen once and it played havoc with drivability until it was re-connected.