Hello, TIA for the help and ideas.

My 01 Excursion Limited 6.8L 2wd is having what I think is a tranny / shifting issue? Mileage is about 160K. She has been doing just fine and no recent work or out of the ordinary maintenance / replacements..

Got in her this morning to go and noticed that the tranny seemed different. First thing I noticed was that the shift form 1 to 2 was long in coming and then sort of hard / thump when it did change. Then is seems to rev higher in the rpm range than normal when going into 3rd maybe 4th.? I pulled over into a parking lot, turned it off and did a brief inspection of the underside, fluid, etc.. and did not find anything strange. Started her back up and went to leave when I heard a popping / thumping noise from the tranny. Threw it in neutral and reved the motor to see what it sounded like and it was good. Back in drive again and the noise was there. Seemed to go away after getting up to say 45/50mph but the shifts were still off. Took her back home and now trying to decide whats first on diagnosing this issue?

Thanks

 

Also something I forgot to ask. Does the tranny have "codes" or a "scan" that can be done?
I know there is not any "check engine" light or dash illumination currently on. thanks

 

Does the OD light on the shifter flash?

 

Yes it does. It's the same connector as the engine, under the dash on the driver's side.

The places that read codes free CANNOT read all of the codes you need. You need either a good independent shop or a Ford dealer.

 

the "OD" light on the end of the shifter does not flash when truck is running and in drive, sitting in the driveway. I did not drive it on road to see if it would start doing it. wanting to get to issue and not damage more stuff. thanks