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1996 Yukon/RPM fluctuation
I am experiencing RPM fluctuations while driving on the freeway. It is very noticeable when driving between 55 & 65 miles per hour. It happens more frequently when in OD but will occasionally do it while out of OD. The RPM's will dip 3-4 grand and then grab again. I haven't taken the rig into the tranny shop yet as I wanted to get some idea as to what it may be before I walk in and get bent over. The vehicle only has 118,000 miles and I've never towed anything with it. I was wondering if it may be a vaccuum issue or possibly an injector problem but I am the farthest thing from a mechanic. Any troubleshooting ideas would be greatly appreciated.
Scott/Portland, OR.
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10-22-2007, 11:33 PM
