Transmission shifting wierd. Sumone PLEASE HELP.

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Mar 9, 2009 | 11:52 PM

JeepMudBogger88

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Joined: Mar 2009

Posts: 5

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Year: 1999

Model: Grand Cherokee

Engine: 4.7 V8

Transmission shifting wierd. Sumone PLEASE HELP.

I have a 1995 Jeep Cherokee 4.0 4x4 Np 231 transfer case and an automatic transmission not too sure which tranny it is. Right after I installed 31" tires i noticed that the tranny wasn't shifting from 1st gear until i let go of the gas and let it shift. Once it shifts to 2nd it felt very sluggish so i don't know if its shifting to 2nd or 3rd after 1st gear. After about 2-3 weeks of that, it started working fine for about 1 week, then the same thing happened all over again for about almost 1 month. Then it worked fine for about a week and a half. After that the tranny shifts without me letting go of the gas but still has that sluggish feel and boggs down right after 1st gear. Ive given it a tranny oil change but nothing changed. I dont know if I need a total rebuild or what but if sumone has had the same problem or knows what my problem is please help. I would greatly appreciate it. Thank You.

Mar 9, 2009 | 11:55 PM

BuckB91XJ

CF Veteran

Joined: Nov 2008

Posts: 6,989

Likes: 4

From: Oak Harbor, WA.

Year: 1987

Model: Cherokee

Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator

Well, the automatic tranny in your 95 XJ is the Aisian AW4 4-speed auto. As far as your problems it sounds like a servo problem.

Mar 10, 2009 | 12:18 AM

JeepMudBogger88

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Newbie

Joined: Mar 2009

Posts: 5

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Year: 1999

Model: Grand Cherokee

Engine: 4.7 V8

Thanx

Thanks a lot Buck, it does make a lot of sense that it could be the servo.

Mar 10, 2009 | 11:56 AM

theangler

Seasoned Member

Joined: Aug 2008

Posts: 494

Likes: 3

From: Maine

Year: 1991 Laredo

Model: Cherokee

Engine: 4.0L H.O.

TPS?

Mar 16, 2009 | 06:30 PM

JeepMudBogger88

Thread Starter

Newbie

Joined: Mar 2009

Posts: 5

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Year: 1999

Model: Grand Cherokee

Engine: 4.7 V8

Throttle Position Sensor?

May 27, 2009 | 02:37 AM

championmayday

Member

Joined: Nov 2008

Posts: 103

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From: SOMERSET KY GO BIG BLUE

Year: 1998

Model: Cherokee

Engine: 4.0HO

i just put 31's on my 98 and im having the exact same problem! also the speed limit in my town is 45 and with the bigger tires its wanting to shift in and out of overdrive around this speed. anything i can do?