ihboy

Hi I have A 94 Dodge with a 47rh in it. I Have replaces the tps. But is is still shifting in and out of 4th gear. When i drive like 5 miles it starts to stay in 4th gear. i was think abouth the tv cable where is that located.
Thanks

joem

check the rear brake switch too, as that will unlock the converter.

Ron E

I've had a similar issue. But, it may go a month or two between doing it. I'm pretty sure it's the converter locking and unlocking on mine. It only does it at a steady speed. Just the slightest acceleration and it will lock back in. It's happened only during the AM commute. I've never had it happen on the drive home, even if it sat idle for 8-9 hours.

ihboy

I changed the tps and brake light switch adjusted the tv cable. but it only when the transmission is cold. Once its warms up it stops unlocking and locking.

joem

the converter is electronically controlled. Have you dropped the pan to make sure there isn't a bunch of junk that can jam the electronic servos?

high bid

Check and clean all ground connections. On the 24v this can make a big difference.

Don T

My truck will not lock in OD till the tranny heats up. That is normal for a 47rh.The trans fluid has to get above 60 deg before lock up will happen. This is normal.

ihboy

When my alterater is chargen thats the only time its unlocking and locking. Just saying someone told me to rap foil around the wire from the alterater to the passenger battier to the pcm.

joem

check your terminals, a bad battery ground can sure cause strange stuff!

ihboy

I checked the terminals all clean. I think it might be the transmission temperature sensor. Because once it warms up its fine. What do you guys think?

joem

yup

ihboy

I changed the transmission temp sensor and it locking up like its new thanks for the help