2001 EX (4R100) Needs new Tranmission
This weekend I went to SoCal for some motocross fun and on the return trip (in barstow) my transmission let go. We were very blessed to have stopped for fuel and some drinks when it decided to stop working.
I'm pretty sure that without a professional taking a look at it, I won't know what happened, but I'm hoping to get an idea from those of you in the "Know" and finally get some recommendations on who to go to for a new trans-rebuild because I don't want to ever have this happen again if I can help it by getting a good built trans now.
Initially the trans seemed to be slipping in 2nd gear and didn't want to change to 3rd unless I coaxed it along a bit. 3rd and OD seemed to work fine once we were rolling. Anyway, after our pit stop, the trans would shift into first gear and go, but after letting off the gas the motor would just rev with no engagement from the 4R100 transmission.
If I shut the motor off and started it again it would again work for one gassing, but would then not engage after letting off the throttle. The same happened for reverse.
The transmission was just serviced about 2,000 miles ago where it got flushed, new filter, and a new Mercron fluid (not merc V). I do not believe the fluid change had anything to do with this since it was acting goofy prior to the change and actually got a lot better after the change. However it seems that pulling the trailer and the trip to Southern CA from Utah seemed to take its toll on an already weak trans.
The truck did have a new trans put in at 65,000 miles (the guy I bought it from had it done and showed me the paper work to prove it when I bought it). It now has 107,000 miles (42,000 on rebuild).
Anyway idea what might be wrong? I'm thinking maybe the rear pump failed and it's allowing leak back but honestly I don't know enough about an auto-trans to feel confident in my diagnosis at all. Just guessing really.
We managed to haul it on a trailer to Las Vegas where it's sitting on a trailer at a friends house waiting for me to make a decision about what I'm going to do.
Due to not wanting to have this problem again (we do travel with it quite a bit, and I tow a lot, though it's not heavy towing compared to a lot of you) I am considering a built transmission rather than a simple rebuild.
I am considering an ATS (though it's lower on my list), a BD (also lower), BTS and John Wood. Both BTS and John Wood are the ones I'm most interested in, while leaning toward John Wood since I could more than likely take the entire truck to him in CA to get it rebuilt there. He's also a little less money. I plan to call BTS and John Wood to see what they have to say, but haven't yet. I also need to know if any of you know if I do get my truck to John Wood if his price includes installation like BTS does or if it's going to cost some additional money.
Anyway, your thoughts and opinions are appreciated.
2001 Excursion Limited 7.3 PSD
4" Exhaust, Ford AIS Filter and Box
DP-Tuner F5 - Current Chip
Diablo Chip (not being used)
Superchips 1705 tuner (My code reader)
Broken Tranny as of 01/29/2011 --> New John Wood Trans shortly after. So far it's been awesome, spendy, but awesome.
Tire: Michelin LTX M/S2 LT275/70R18
**First PSD - Purchased 1/2/2008
My Site: mxguy.com
My Forum: allthingsmoto.com