2001 Expedition Overdrive Problem

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09-14-2008 | 12:30 AM

Anjinsan5

Thread Starter

Joined: Sep 2008

Posts: 1

2001 Expedition Overdrive Problem

I am trying to figure out what is going on. My Expedition is doing some weird stuff. When I slow down to a stop I hear a loud clunk. When I am driving the RPM's go up and go down, up and down, all without any change in the speed of the vehicle. When I start out the truck is sluggish and halting. My brother said it sounded like the overdrive program and suggested I turn the OD off. I did it and all the problems seem to have ceased. Is there a chip that has gone bad? Any Ideas on what the problem may be? Please help before I have to take it into a tranny place and pay & pay & pay.

Thanks