rob2337
Member
- Joined
- April 25, 2005
- Messages
- 43
- Reaction score
- 0
- City, State
- Montreal
- Year, Model & Trim Level
- 95 XLT 4x4
All right, it has been over a year since I have had transmission problems. The last problem was a TC lockup when it wasn't supposed to resulting in the truck stalling at every stop. I finally solved this with an ebay valve body and internal transmission wiring harness.
Now the revenge of the 4r55e....
My girlfriend borrowed the X, when she returned it, she said it was louder than usual and the OD light was flashing. I took it for a test drive, and from what I can feel....No third gear.
The symptoms are as follows:
Shift from first to second easily, but going around 35mph, the tach still climbs. No 3rd shift.
This is the strange part, once i get up to around 40mph, the torque locks up and the RPMs drop to like 1200 RPM with the engine chugging along. It releases if I give it some gas or brake.
Pulled the codes and I got:
DTC 636 - Key one engine off - Trans Temperature out of range, Probably because it is below zero here....not big deal
DTC 639 - Continuous memory Turbine shaft speed sensor error
DTC 646 - Continuous memory 2nd gear failure
DTC 647 - Continuous memory 3rd gear failure
No bad noises at all coming from the transmission, shifts smoothly except into 3rd. Any chances it could be just a bad shift solenoid or bad connection on the transmission wiring harness?
Would a broken band create the following symptoms. I know there is a stall test to try to eliminate band problems, could someone elaborate on this?
Any other ideas?
Thanks
Now the revenge of the 4r55e....
My girlfriend borrowed the X, when she returned it, she said it was louder than usual and the OD light was flashing. I took it for a test drive, and from what I can feel....No third gear.
The symptoms are as follows:
Shift from first to second easily, but going around 35mph, the tach still climbs. No 3rd shift.
This is the strange part, once i get up to around 40mph, the torque locks up and the RPMs drop to like 1200 RPM with the engine chugging along. It releases if I give it some gas or brake.
Pulled the codes and I got:
DTC 636 - Key one engine off - Trans Temperature out of range, Probably because it is below zero here....not big deal
DTC 639 - Continuous memory Turbine shaft speed sensor error
DTC 646 - Continuous memory 2nd gear failure
DTC 647 - Continuous memory 3rd gear failure
No bad noises at all coming from the transmission, shifts smoothly except into 3rd. Any chances it could be just a bad shift solenoid or bad connection on the transmission wiring harness?
Would a broken band create the following symptoms. I know there is a stall test to try to eliminate band problems, could someone elaborate on this?
Any other ideas?
Thanks