97 grand 4.0 with no overdrive?? - Jeep Garage - Jeep Forum

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Old 10-19-2016, 10:04 PM
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97 grand 4.0 with no overdrive??

Anybody riding in their ZJ with the overdrive not working. My sister's 97 threw the belt and it knocked one of the cooler lines off for the transmission and also blew the radiator. I got it hauled to my house and replaced the radiator and belt and put a new thermostat in and got it back up and running. I also repaired the cooler line and started putting fluid in the transmission since I knew it would be low.

Well 10 quarts of ATF 4 later it was finally full on the stick. It's running fine and no overheat issues and still don't know why the belt came apart. All the pulleys and accesories seem to be fine.

Once I got it in the road I noticed it wasn't going into that final gear around 45 to 50 mph. The OD button is working and when I push it it kicks down a gear and when I turn it back on it goes back up a gear but it seems that the torque converter isn't locking up into the last gear.

I'm surprised that it even works at all after most of the fluid was missing when I got it back up and running. It pull's and shift's in the lower gears fine so overall the transmission seem's to be ok except for the final over drive gear. Anybody deal with this issue already?? Any suggestions are appreciated!!

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Old 12-15-2016, 08:18 AM
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Re: 97 grand 4.0 with no overdrive??

I don't know the answer, but hoping someone here chimes in soon! My '93 Dakota sometimes won't go into overdrive, usually after not being driven in a while. One time, it was some kind of solenoid on transmission that caused that.
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Old 12-15-2016, 01:15 PM
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Re: 97 grand 4.0 with no overdrive??

Quote:
Originally Posted by GuyGene View Post
I don't know the answer, but hoping someone here chimes in soon! My '93 Dakota sometimes won't go into overdrive, usually after not being driven in a while. One time, it was some kind of solenoid on transmission that caused that.
I think the OP is getting into od, but then the lockup of the torque convertor doesn't seem to be happening.
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