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#1
10-21-2008, 01:39 AM
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88 XJ - Tranny slipping when cold outside
This autumn air is creating a problem - the automatic transmission in my 88 Cherokee is starting to slip again and occassionally won't upshift out of first gear.
Does anyone else have a transmission that acts up in the colder weather? Is there a fix for this? The transmission fluid has been flushed as well as the filter changed. Thanks, Elle 
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#2
10-21-2008, 07:58 AM
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Re: 88 XJ - Tranny slipping when cold outside
this is known as a condition called morning sickness. on high mileage transmissions (autos) the seals will shrink when it is cold out. when they shrink, the fluid is not going where it is suppose to, and you get the slipping and no shift to second. the fix for it is a transmission rebuild, which is cost prohibitive.
i had a 1992 camry with this problem, for years before i sold it! what i did was idle the car every morning (when cold) until the trans fluid was warm enough to swell the seals (10 min). then off i went. i drove it like this for 5 years! and sold it running (still running today). mike
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2006 liberty 3.7 6speed manual 1999 cherokee classic 4.0L 1991 wrangler yj 2.5L 2001 caravan 3.3 auto 1995&1992&1994 camry 2.2L SOLD 1991 silverado 1500 SOLD 2000 rodeo SOLD 
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#3
10-21-2008, 11:05 PM
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Re: 88 XJ - Tranny slipping when cold outside
My '84 Jeep has had this problem for a long time. If it sits for more than a day, the transmission will not engage any gear at all upon first starting the engine.
However, if I shift it back and forward between Drive and Reverse about 5-8 times after the engine has started, it will then engage a gear and perform flawlessly for the rest of the day. It has been doing this for the last 30,000 miles or so.
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#4
10-22-2008, 06:58 AM
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Re: 88 XJ - Tranny slipping when cold outside
My 89 does the same, or has been, also would have prolonged shifts when cold. I drained the tranny and added Lucas treatment and adjusted the TV cable, gave it a little bit of slack(about 2 clicks) and it seems to work great for now.
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#5
10-24-2008, 02:31 AM
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Re: 88 XJ - Tranny slipping when cold outside
Thank you for the replies.
I'll have to try the 10 minute warm up. Usually, I do let it warm up but not that long because of current fuel prices. Elle
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#6
10-24-2008, 09:46 AM
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Re: 88 XJ - Tranny slipping when cold outside
Quote:
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#7
10-26-2008, 01:30 AM
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Re: 88 XJ - Tranny slipping when cold outside
How difficult is it to tighten the throttle valve cable - and where is it located, etc?
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