I put a D-5 converter back in a month ago. I didnt know what the old owner had done to convert to the non lock converter in there. I just swapped it and hoped my mileage would improve just based on the rpm drop going from the high stall converter that was in there before. The purple power wire in the connector that goes to the TCC lockup solenoid was removed by the old owner. I hoped that maybe the original lockup valve was in there and maybe he just disabled the lockup electronically. After putting the d-5 in and hooking the power wire back up, all was fine for awhile, except lockup didnt work unless I was under a big load, like going up a hill. My lockup switch only worked in Drive (not OD), while driving at low speeds. Over the past week, after everything heats up from driving for an hour, my tranny starts acting up. I'll leave a stoplight, and say the tranny shifts into 2nd.....the rpms will bog way down, and the more gas I give it, the more the rpms bog down. Boost goes up and up cause its under such a load. The tranny doesnt downshift. Its as if the tranny is remaining in that gear, and that lockup is trying to occur at the same time....in 2nd gear! It only starts doing it when things have really heated up. My fluid looks ok and doesnt smell burnt. Ive read somewhere that the fluid doesnt start flowing through the cooler lines until lockup has happened. Thats a lockup test I read about, actually. Pull off a cooler line, run a hose from it, going back into the filler tube. put the car on jacks and put the car in drive. Get up to about 60mph, and at some point you should feel or see the hose "jump" from the fluid pumping through the cooler lines. Thing is, if lockup isnt working, could it be that fluid is not circulating through my cooler lines, and in return not cooling my tranny fluid? I thought it was weird that this lack of downshift/lockup/bogging thing would only happen when its hot. Even if I shut the car off for a couple minutes, and start driving again, this whole problem disappears for awhile. Ive got a deal in the works right now, where Im trading my non lock Art Carr for a 9/11 converter with 1000 miles on it, and about 10 track passes on it. I want to make sure that my tranny doesnt fry before I even get the chance to put it in. Someone mentioned that it sounded like my lockup solenoid was going out, but if that were the case, why did lockup never work right, even though the solenoid ohms out fine. Even if lockup is trying to happen, shouldnt the tranny at least try to downshift? My TV cable is adjusted well. Is it possible for a non lock pump valve to allow some fluid to flow through? I had a pretty big gap between the mounting face of the converter and the flexplate. Like maybe as high as 1/2" I just pulled it together when I bolted it up. I wonder if the flexplate could be flexing far enough that the pump is coming disengaged. Seems pretty unlikely though.
Could I be destroying my tranny? Long
- Thread starter VadersV6
- Start date
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