03silversvt
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- July 16, 2007
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- Year, Model & Trim Level
- 99 mountaineer
torque converter staying locked up once i get into 4th or 5th. code (P0743). UPDATE
99 mountaineer 4.0l 4x4 w/5r55e 115k miles
Just installed a remanufatured and tested valve body with all updates, bonded gasket, blow off valve, etc. Took the truck for a ride and alll was good till it got to 4th gear and o/d. the torque converter will agressively lock up from 3rd into 4th and does same for 5th. Will not unlock either. I came to a stop and the truck stalled becuase of the engagement. Put her in park and restarted. The first try into drive, it was still in o/d and it just stalled. Second try, it went back to first. I have found that i can also get it out if its stuck gear by throwin the truck into second. Upon arrival back to my house, it threw a check engine light code of p0743 about 20 yards from my driveway.
my old valve body was not really that bad. It was throwing code of p0741 and had a little issue of early torque converter lockup going into 3rd but with a little more gas it would realease. never had the 4th or 5th gear issue. I did everything by the book and brought out instructions from this forum. Any thoughts? Possibly need new wiring for whatever reason?
99 mountaineer 4.0l 4x4 w/5r55e 115k miles
Just installed a remanufatured and tested valve body with all updates, bonded gasket, blow off valve, etc. Took the truck for a ride and alll was good till it got to 4th gear and o/d. the torque converter will agressively lock up from 3rd into 4th and does same for 5th. Will not unlock either. I came to a stop and the truck stalled becuase of the engagement. Put her in park and restarted. The first try into drive, it was still in o/d and it just stalled. Second try, it went back to first. I have found that i can also get it out if its stuck gear by throwin the truck into second. Upon arrival back to my house, it threw a check engine light code of p0743 about 20 yards from my driveway.
my old valve body was not really that bad. It was throwing code of p0741 and had a little issue of early torque converter lockup going into 3rd but with a little more gas it would realease. never had the 4th or 5th gear issue. I did everything by the book and brought out instructions from this forum. Any thoughts? Possibly need new wiring for whatever reason?
