well thx for the tip, any price tag on that? i have no idea. Is there any way it could be a vaccum line or even something with a computer becuz the O/D Off light flashes, I thought that was very odd
The mileage you have on that trans (if its original) is very respectable for any car, and even more so for an explorer. For the V6 engines, The 95-96 4spd units are much more reliable than the 97+ 5spd units, so if you get another ex keep that in mind. The extra gears create extra wear and tear on the trans and they have other little issues too.
Probably 2 grand, because the trans has to be dropped to replace the band in the case. The 4R55E has no vacuum controls whatsoever, its is completely electronic. The older A4LD did, but that wouldn't affect that anyway.
The O/D flashing means you have a code stored in the transmission computer
, you can get it scanned. It is likely some 1-2 gear ratio error type code. It wouldn't hurt to get the thing scanned. The intermediate band controls the 1-2 shift. The other possibility could be a bad servo that controls the band, but the total loss you describe is probably the band.
Here are some options:
You can try a band adjustment, but if you do it wrong (too tight, without an in/lb torque wrench) it will snap the band. If you notice that the screw keeps going in with no resistance, the band is broken. It is a pain in the butt to do with the trans on the truck but doable.
Here is what you may find in the pan:
And here is another, with a pic of exactly what broke:
First get the code scanned, then confirm if the band is broke. Usually there is evidence in the pan. If the band is ok, then the servo or valve body is probably trashed.