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The minivan (18 years old, 90,000mi) can't get up to speed. As the van warms up, it gets worse.
The van would rev to about 4,000rpm and go maybe 50-60mph at most, and it got worse after about 20-30min. of driving. At its worst, the van can't get going on a uphill start. If I let the van cools down, it will drive a little again. I feel like the torque converter is slipping. Can you think of what is wrong? I changed the computer that controls the transmission and that didn't help.
Also, the torque converter was replaced back in 1998 [at]50,000mi.
Just trying pick the brains here and thank you very much!
The van would rev to about 4,000rpm and go maybe 50-60mph at most, and it got worse after about 20-30min. of driving. At its worst, the van can't get going on a uphill start. If I let the van cools down, it will drive a little again. I feel like the torque converter is slipping. Can you think of what is wrong? I changed the computer that controls the transmission and that didn't help.
Also, the torque converter was replaced back in 1998 [at]50,000mi.
Just trying pick the brains here and thank you very much!