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jmeloxj
Sat Dec 29 2007, 10:57AM
Registered Member #16
Joined: Mon Mar 12 2007, 07:49PM
Posts: 24
i am starting to have a problem with my xj and i really dont like it! when i am on the highway my xj has to keep reving up and trying to up shift to stay the correct speed i think its loosing compression but i dont know any1 got ideas?

2000xj with 6.5 lift 33x12.50MT mtz's ready for the build but the pockets ai n't
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rockcity
Sun Dec 30 2007, 12:36PM

Registered Member #21
Joined: Tue Mar 13 2007, 05:17PM
Location: Greenville, NC
Posts: 703
your trans is probabally going out...

www.ECORS.com
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mcjeep
Sun Dec 30 2007, 02:56PM
NCK Member

Registered Member #14
Joined: Mon Mar 12 2007, 04:40PM
Posts: 85
X2 sounds like a slipping trans.

[ Edited Sun Dec 30 2007, 02:56PM ]
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jmeloxj
Sun Dec 30 2007, 11:07PM
Registered Member #16
Joined: Mon Mar 12 2007, 07:49PM
Posts: 24
umm not good thats not what i wanted to hear how can i tell for sure???

2000xj with 6.5 lift 33x12.50MT mtz's ready for the build but the pockets ai n't
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NC-Fordguy
Mon Dec 31 2007, 12:34AM
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Joined: Tue Mar 06 2007, 05:53PM
Location: Bethel NC
Posts: 1153
I'm not well versed in jeeps but some things you might look at....

Take a look at your fluid...Is it a brownish color? Any Burn smell? Can you feel any debris on the fluid that's on the dipstick??

When was the last time you had the fluid and filter changed?

Take a look at the modulator valve. When you pull the vacume line out does fluid come out? If so the modulator valve is bad and needs to be replaced. This MAY solve your problem.

Check to make sure you do not have a vacume leak.

The symptoms your are describing may also be a lock up torque converter going out as well

No Hablos Jeep

If it doesn't make sense, do it
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rockcity
Mon Dec 31 2007, 10:09AM

Registered Member #21
Joined: Tue Mar 13 2007, 05:17PM
Location: Greenville, NC
Posts: 703
I was also going to say somethinga bout the torque converter...

I'd change AND flush the trans fluid and install a new filter. Also, have someone check out the solenoid for the trans. A new solenoid and new fluid with some additives can buy you some time, if its the trans.

Bri's trans in here Mazda went out a few years ago. We replaced the solenoid, fluid, and filter and it gave her about 3 more months use around town until we could find a decent replacement car (ended up being an XJ).


[ Edited Mon Dec 31 2007, 10:09AM ]

www.ECORS.com
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jmeloxj
Mon Dec 31 2007, 12:57PM
Registered Member #16
Joined: Mon Mar 12 2007, 07:49PM
Posts: 24
are there any good shops i should take it to? or any place that wont screw me over......

2000xj with 6.5 lift 33x12.50MT mtz's ready for the build but the pockets ai n't
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rockcity
Mon Dec 31 2007, 02:22PM

Registered Member #21
Joined: Tue Mar 13 2007, 05:17PM
Location: Greenville, NC
Posts: 703
Any trans place will pretty much screw you over. Just pick one and bring the Vasoline, it won't hurt as bad...

I've always taken my junk to University Auto Care. Mainly cause I've known Austin and Jackie (owner and son) for years and they have always been fair to me.



www.ECORS.com
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pee-J
Sat Jan 05 2008, 04:36PM

Registered Member #24
Joined: Tue Mar 20 2007, 06:44PM
Location: Oklahoma City, OK
Posts: 377
Where is the modulator valve located? I'd like to check out mine as well. I wonder if it does the same thing mine does or if it's entirely different. Mine doesn't downshift hard...

95 XJ 4.0HO>AW-4>NP241"Roc-Trac." Rough Country 6.5" on 33's. Warn M8000, locked and armored up but (was) driven daily.
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NC-Fordguy
Sat Jan 05 2008, 10:28PM
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Joined: Tue Mar 06 2007, 05:53PM
Location: Bethel NC
Posts: 1153
Not sure where it is on Jeep stuff...On Fords it's on the passenger side at the rear of the tranny

Follow the vacume line that comes from the engine back to the tranny. On the Bronco, the vacume line is plugged into one of the vacume ports on the carb. I've seen some lines originate from the intake manifold. The valve is about the size of a salt shaker

[ Edited Sat Jan 05 2008, 10:31PM ]

No Hablos Jeep

If it doesn't make sense, do it
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pee-J
Sun Jan 06 2008, 11:59AM

Registered Member #24
Joined: Tue Mar 20 2007, 06:44PM
Location: Oklahoma City, OK
Posts: 377
Cool, thanks! I'll check it out...

95 XJ 4.0HO>AW-4>NP241"Roc-Trac." Rough Country 6.5" on 33's. Warn M8000, locked and armored up but (was) driven daily.
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