How to Disconnect TCC solenoid 1998 Grand cherokee limited 5.2L - JeepForum.com
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Unread 12-28-2011, 05:10 PM   #1
jakesauto
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How to Disconnect TCC solenoid 1998 Grand cherokee limited 5.2L

We got a jeep here at the shop and the torque converter is locking up in 1st gear then just banging through all the gears all the way to over drive. Then it wont release when you stop until the jeep almost dies. Customer brought it in after the radiator leaked water into the trans..ever since its been a mess. We want to disconnect it so it no longer locks up. Can someone tell me which wire we can cut or disconnect without pulling the pan. thanks

I read online that the TPS could cause this issue..we will check that in the am but our main concern is disconnecting the tcc

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Unread 12-28-2011, 05:34 PM   #2
ZeeJay1997
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If you pull the transmission relay in the fuse box under the hood, it disables all electronics in the transmission. Normally when this relay is removed, it starts out in 3rd gear when the selector is in D, and operates in 3 gears when manually shifted (no OD)

There are some very sharp transmission guys that hang out here, maybe one of them can advise you on whether or not it's a mechanical problem.
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Unread 12-28-2011, 08:52 PM   #3
Mickey_D
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According to the FSM, it's the Dark Green wire on pin of the transmission solenoid control plug.
tccsolenoid.jpg  
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Unread 12-29-2011, 03:20 PM   #4
jakesauto
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I think we got the right wire. From the diagram dark green with light blue tracer. Cut it but didnt seem to help the issue. Anyone run into this issue after water going though the transmission? Not sure if we should replace the torque converter or what? we have flushed the fluid out plus a filter change.
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Unread 12-29-2011, 03:41 PM   #5
jakesauto
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tried pulling the transmission relay as well. When you put it in D if kills right away..If you put it in 1st its fine...not sure what to think
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Unread 12-29-2011, 09:48 PM   #6
RobK
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If coolant got in the transmission, it will need to be rebuilt. The clutch material soaks up the moisture, and then starts to flake off.
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Unread 12-30-2011, 08:15 PM   #7
ratmonkey
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Clutch material adhesive is water soluble. The trans will need rebuilt, cooler flushed, and torque converter replaced with a new one.
The converter locks when fluid is released by the tcc solenoid, which is normally closed.

The converter is probably jammed with material from the clutches at this point. Only takes a couple days with water in the trans to ruin it.
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