Transmission won't shift when in drive
#17
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Year: 1995
Model: Cherokee(XJ)
Engine: 4.0
SOLVED!
Just an update for those who are interested. I repaired the harness for the 7 way connector where the insulated had been rubbed off behind the clamp on the side of the transmission. After reinstalling, there was no change. I was still getting voltage of around 7.5V on each C14/15/16 with the jeep in park, key on, connector unplugged. Then when I would plug the connector in the voltage would drop to zero. Still stuck in 4th gear in drive.
I ordered a new TCM off ebay and installed it. Now everything works properly! Transmission shifts great in drive.
I assume that when I was doing the engine swap and moving the transmission around that the harness got moved around just right to cause a short where the insulation had been damaged. It must have burned up a driver in the TCM. After repairing the harness and replacing the TCM everything is working properly.
Thank you all for the help!
Just an update for those who are interested. I repaired the harness for the 7 way connector where the insulated had been rubbed off behind the clamp on the side of the transmission. After reinstalling, there was no change. I was still getting voltage of around 7.5V on each C14/15/16 with the jeep in park, key on, connector unplugged. Then when I would plug the connector in the voltage would drop to zero. Still stuck in 4th gear in drive.
I ordered a new TCM off ebay and installed it. Now everything works properly! Transmission shifts great in drive.
I assume that when I was doing the engine swap and moving the transmission around that the harness got moved around just right to cause a short where the insulation had been damaged. It must have burned up a driver in the TCM. After repairing the harness and replacing the TCM everything is working properly.
Thank you all for the help!
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boxburn (12-14-2021)
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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lawsoncl (12-15-2021)
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