So that's about the problem, it won't shift into D4. The dash light doesn't light up for the D4 but it does for all the other positions. It seems to shift later than it should and it definitely shifts harder than it should. It also won't lock into the D4 position. From Neutral, it pulls straight down to D3.
I've replaced the tranny with one from a junkyard b/c the previous owners had it rebuilt by a "friend" and he rigged it to work until he left town and then the tranny fried, And let's say I got a great deal on the car. I can't remember if I used the old Torque Converter or the junkyard one, but I replaced the solenoids on the front of the tranny with the ones from the other tranny and still the same problem with both sets of solenoids. Tranny fluid is fine w/ no leaks and very clean.
My only guesses at this point would be the Torque Converter or the TCU. Any other suggestions?
I've replaced the tranny with one from a junkyard b/c the previous owners had it rebuilt by a "friend" and he rigged it to work until he left town and then the tranny fried, And let's say I got a great deal on the car. I can't remember if I used the old Torque Converter or the junkyard one, but I replaced the solenoids on the front of the tranny with the ones from the other tranny and still the same problem with both sets of solenoids. Tranny fluid is fine w/ no leaks and very clean.
My only guesses at this point would be the Torque Converter or the TCU. Any other suggestions?
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