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90 xj will not downshift

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Old 06-25-2016, 11:40 PM
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Default 90 xj will not downshift

90 xj will not downshift.

I did the cable adjustment procedure but still not luck.

I replaced the valve cover gasket and in the process I had to force the cable out of the way. That's when it stopped downshifting.

Is is possible that by moving the cable I dislodged the cable attachment in the transmission?
Old 06-26-2016, 02:53 AM
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If you pull on the cable does it retract on it's own?
Old 06-26-2016, 07:25 AM
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Originally Posted by Radi
If you pull on the cable does it retract on it's own?
Yes, when I pull on the cable and let go it springs back.
Old 06-26-2016, 08:34 AM
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That cable has NOTHING to do with shifting, only the line pressure in the trans.

The tPS on the other hand does affect shifting.

Give us some more details on how the trans is acting please.
Old 06-26-2016, 11:40 AM
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Thanks cruiser54 for your info.

It was the tps.

Running fine now and out of the dog house (wife's car).
Old 06-26-2016, 02:58 PM
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Originally Posted by william50
Thanks cruiser54 for your info.

It was the tps.

Running fine now and out of the dog house (wife's car).
Did you adjust that TPS when you installed it?
Old 06-26-2016, 05:07 PM
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Originally Posted by cruiser54
Did you adjust that TPS when you installed it?
Yes.

What I didn't mention above is that I degreased the motor prior to changing the valve cover gasket.

The degreaser coupled with high pressure water spray must have killed it.

The connectors must have had moisture in them causing a short when I started the motor.
Old 06-26-2016, 05:38 PM
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Originally Posted by william50
Yes.

What I didn't mention above is that I degreased the motor prior to changing the valve cover gasket.

The degreaser coupled with high pressure water spray must have killed it.

The connectors must have had moisture in them causing a short when I started the motor.
TPSs hate water.
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