89 xj shifts only in high RPM's
Thread Starter
"CF Moderator"
Joined: Sep 2008
Posts: 3,045
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From: N.J. Shore Area
Year: 1994
Model: Cherokee
Engine: l6 HO
89 xj shifts only in high RPM's
My friend has a 1989 CK and it just started shifting at around 4000 rpms. The fluid was changed a few months ago, so does anyone have any ideas? Thanks...Tj
Thread Starter
"CF Moderator"
Joined: Sep 2008
Posts: 3,045
Likes: 3
From: N.J. Shore Area
Year: 1994
Model: Cherokee
Engine: l6 HO
OK here is some more info. My son-in-law washed under the hood yesterday of his 89 xj then it started shifting funny. Now it shifts ok but the trans will not down shift by itself, you have to do it manually...Tj
CF Veteran
Joined: Apr 2008
Posts: 7,661
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From: Smiths Station, Al
Year: 87
Model: Wagoneer
Engine: 4.0 I6
You got the TPS wet. might as well replace it or readjust it. May still need to replace it though. TPS does not like water AT ALL. I usually leave the motor running when I wash under the hood tends to help. I will also cover the TPS with a garbage bag.
Thread Starter
"CF Moderator"
Joined: Sep 2008
Posts: 3,045
Likes: 3
From: N.J. Shore Area
Year: 1994
Model: Cherokee
Engine: l6 HO
OK Thank you XJ Stryker, Im usually good at finding problems but this one had me stumped. I will tell him to check the TPS...Tj
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