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Message: <blockquote data-quote="marksmandcs" data-source="post: 1666790" data-attributes="member: 7605"><p>I would do as dieseltech and tyro mentioned and check for junk in the intake system. I had a problem with residue in the small gap between the butterfly valve and the throttle body wall that was causing the same symptoms you have. It was caused by vaporized oil coming from the cam cover vent hose that goes to the intake between the air box and valve. The residue settled on the butterfly valve seat. When i unplugged my MAF it ran fine but after cleaning the valve with carb cleaner it ran fine. The problem led me to leaky valve stem seals that went bad from a water pump failure induced overheating problem.</p></blockquote><p></p>