Question about 1999 Jeep Grand Cherokee

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Jeep grand cherokee slips in 2nd then wont down shif once in 4th

Jeep runs 1st 2nd then a slip in 2nd, shifts to 3rd then 4th but then wont down shift if say travelng up hill. No codes. cel is not on. i can manualy shift to drive and it has no problems

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  • Jeep Master
  • 20,706 Answers

Cel means nana, scan it.

ok , as with all a/t
1: CHECK FUSEs.
2: Check levels, ATF
3: do the full flush and filter and pray magic. (i have no hope)
4: the more you slip it the more damage to those clutch packs.
diagnose slip, that is a big show stopper.
see thje on car tests for this A/T here.

http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

Posted on Mar 26, 2014

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6ya6ya
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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: 1994 JEEP GRAND CHEROKEE-TRANSMISSION "SLIPS" ON TAKE OFF.

First of all make sure you are checking the fluid right. Some people do not know that in order to check transmission fluid the engine needs to be running and the temperature needs to be sort of warm althought you should be able to get a good Idea just by the engine running. In this instance you might have a governer valve that isn't properly working to shift the engine when hydraulic pressure reaches a certain PSI. I would suggest having it flushed and put in new fluid and filter. If this doesn't work the problem is more serious and might need some professional assistance.

Posted on Oct 14, 2008

  • 159 Answers

SOURCE: 1995 jeep grand cherokee auto trans prob

sounds like the transmission is in "limp"mode it allows you to drive even though there is a problem with the transmission,the code 21 is probably a transmission manufature control code and not engine go to autozone and they can scan it for free,if you just had transmission fluid changed recently if you used anything other than what the manufature calls for like atf+4 then this is your problem,flush the system and do a fluid and filter change with correct fluid as by what the owners manual,or dealer calls for,don't rely on autozone to get it right.

Posted on Dec 25, 2008

Caesarfix
  • 141 Answers

SOURCE: 01 jeep Grand Cherokee transmission problem

Reboot system by disconnecting negative terminal on Battery, with ignition Key on and engine not running, remove terminal for more than two minutes and connect it back, it will spark a little do not panic, and try it again

Posted on Feb 01, 2009

  • 1 Answer

SOURCE: Transmission problem

I had a shifting problem. The car would start in the wrong gear and shift at wrong times. I repaced the governor postion sensor and tranny fluid and the problem has been fixed for several years. Did you replace the tranny fluid?

Posted on Mar 07, 2009

  • 295 Answers

SOURCE: 2005 Jeep Grand Cherokee Shifting Problems

Check the Trans fluid level with it running and at operating temperature. Jeep NAG1 transmissions are known to have the input electric seal leak trans fluid. Not an exspensive fix add Mopar ATF4 and then relace the guild seal.

Posted on Jul 20, 2009

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1 Answer

Wont shift since ran out of gas


jeep ZJ 94.
no car runs, out of gas,,,, my dream do to this , has failed, 100 times.
HHO failed, and x,z,y.
even the match book cover, showing "turn water to fuel" fails.
im pulling your leg,

running out of fuel , likes to burn up fuel pumps.
they are fuel cooled and fuel lubricated. so dont do that. or $$$$$$$
after you ran it dry, the pump can fail, or have hard time priming.
long cranking to get the full system primed.
is engine running ok?, you failed to say that important fact...so.....
if engines ok?
does car go fast in 1st gear, fact 2 missing.....so...........???
wont shift can mean , tranny slips or wont go to 2nd, 3rd gear.???
which is it? slips? so skips?
or shifts late?
or shift too early.?

id reset the tranny TCM. (brain)

one way is to pull the battery neg cable for 5 min.
wait and put it back
all TCM have learn mode. so drive and teach it how you drive.
newer cars , 1trans, fists vast number of cars so it has an
even harder learn mode (not yours)

tell more get more......????????????????

the FSM is here.
under ZJ.
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

Mar 09, 2014 | 1994 Jeep Grand Cherokee

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I have a Jeep Grand Cherokee 2001 with 88k on it . It feels as if it is holding on to 1st gear to long when shifting to 2nd and the same when shifting from 2nd to 3rd. The slam isnt as hard when going to...


as a quick remedy 1st check your fluid make sure is clean and leveled/adjust your kick down cable for early shifting by loosening the cable till you establish the right shifting

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2000 Jeep Grand Cherokee shifting problem from 2nd to 3rd


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