Hello,
I have a 2006 F250 6.0 diesel with the 5R101W trans. Truck has a tow tune in it now
Im having some issues with my trans only with tune in truck. Truck has a new (reman) trans in it now, maybe 50 miles on it. This problem was with old trans as well.
Up shifting seems to be good now, was doing a flare shift from 2-3 and 3-5. This seems good now. My biggest issue is when truck down shifts at low speeds. We watched on my buddys scanner, when trans goes to 5th and you make trans down shift with heavy throttle it starts to hunt for gears. Example: Trans was in 5th, when heavy throttle applied trans drops to 3rd, then drops to 1st, back to 3rd, then 1st again back to 3rd then 5th. All of this happens in 10 sec of making it down shift with heavy throttle.
With stock tune in truck there is no issue at all, only with tune. So im not sure what im missing in tune to fix this.
Any help would be great!
Thank You
Here is the tune in truck now
JIM CUSTOM TOW TUNE 32717 ADJUSTED EGR 404 405 406 OFF SHIFT ADJUSTMENT.hptVCMSuiteInfo.txt