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PisnNapalm
01-31-2007, 07:33 PM
Do any of you know much about transmissions? My wife's 2000 Jeep Grand Cherokee is acting up. When the engine is cold the tranny slips and sometimes when it is engaged it won't shift properly. Once it's warmed up it works just fine.

My initial guess was that a seal was contracting when it was cold and not allowing the fluid pressure to build properly. Once it warmed up the seal worked fine.

Well... I took it to a tranny shop and they confirmed what I thought. They call it "morning sickness". They recommended a "soft parts overhaul". (seals, gaskets, torque converter and electronics) Price tag is about $2100.00.

That seems a bit steep to me. Any ideas what that should cost? I've been trying to find a price estimate online but can't.

augustashark
01-31-2007, 10:29 PM
Had a trany rebuilt about 3 months ago cost was $1,700. If you go with a new one you're looking much much higher then that. I would shop it around and do some homework on who does the best work. I would also make sure that they give at least 12 month warranty, this is very important due to that it could go bad again. If they tell you they can't then move on and find another shop. Good luck.

Preacher
01-31-2007, 11:38 PM
Do any of you know much about transmissions? My wife's 2000 Jeep Grand Cherokee is acting up. When the engine is cold the tranny slips and sometimes when it is engaged it won't shift properly. Once it's warmed up it works just fine.

My initial guess was that a seal was contracting when it was cold and not allowing the fluid pressure to build properly. Once it warmed up the seal worked fine.

Well... I took it to a tranny shop and they confirmed what I thought. They call it "morning sickness". They recommended a "soft parts overhaul". (seals, gaskets, torque converter and electronics) Price tag is about $2100.00.

That seems a bit steep to me. Any ideas what that should cost? I've been trying to find a price estimate online but can't.

Argh.. Transmission work... it is to the left of witchcraft!!

I had a 1999 Blazer, had to have it basically rebuilt. It would have been about 2000 dollars (I had a warranty). So no, that doesn't surprise me.

Here is a hint, go to the Jeep dealer and get an estimate from them. Then, look for someone that will charge about 75 to 85 % of that.

The JoKeR
02-01-2007, 01:37 AM
$2100 is a ridiculous amount of money for a "soft parts" rebuild! I had a tranny rebuilt at aamco for $1200 and that was with a new torque converter (stay away from aamco btw...really crappy work!). I would take it to the dealership, tell them what you were told, have them look at it and go from there.

HometownGal
02-01-2007, 07:06 AM
Even though I don't know much about transmissions (but I can change my own oil!), PisnNapalm, my son has had problems with the transmissions on several of his older cars in the past and I know he didn't pay that much to have an overhaul done. :jawdrop: That seems a bit steep to me. I think the advice you have received here thus far is very sound - get several estimates before commiting to having the work done. Good luck! :cheers:

lamberts-lost-tooth
02-01-2007, 07:30 AM
Do any of you know much about transmissions? My wife's 2000 Jeep Grand Cherokee is acting up. When the engine is cold the tranny slips and sometimes when it is engaged it won't shift properly. Once it's warmed up it works just fine.

My initial guess was that a seal was contracting when it was cold and not allowing the fluid pressure to build properly. Once it warmed up the seal worked fine.

Well... I took it to a tranny shop and they confirmed what I thought. They call it "morning sickness". They recommended a "soft parts overhaul". (seals, gaskets, torque converter and electronics) Price tag is about $2100.00.

That seems a bit steep to me. Any ideas what that should cost? I've been trying to find a price estimate online but can't.


From one Jeep guy to another...Do yourself a favor and replace the Throttle Position Sensor...any Jeep or Chrysler dealer should have it..and it should run under $80.00.
The Transmission Control Unit uses the TPS to determine shift times based on the sensors input ... a bad sensor will cause problems with transmission shifting.

Cherokee's are notorious for this problem...and I have a sneaky suspision that you will find the problem there, and save yourself about two thousand dollars.

Let me warn you....They WILL try and get you to do the overhaul....so get a buddy who knows vehicles...or a serviceman you trust and tell him..this is ALL I want to do right now.

Also do a guick internet search on Cherokee transmission problems and you will see that your problem is pretty common.

PisnNapalm
02-01-2007, 09:24 AM
I had the Speed Control Sensor replaced last October. Is that the same sensor?

lamberts-lost-tooth
02-01-2007, 09:43 AM
I had the Speed Control Sensor replaced last October. Is that the same sensor?

No, they are completely different

heres a link that my help you find the problem.....but I TRULY believe it is your TPS.

http://autorepair.about.com/library/faqs/bl922f.htm

..and here is a link from someone with the SAME situation!!!

http://autorepair.about.com/library/faqs/bl070g.htm

steelerbackr4life
02-01-2007, 09:44 AM
LLt is right especially with that year GC. I have a 2001 GC but I never touch anything on it mechanically. But if you ever want to put a Mustang Gt Tranny into an 88 Wrangler I am your man!

http://i172.photobucket.com/albums/w33/yjfund/th_DSCF0816.jpg (http://i172.photobucket.com/albums/w33/yjfund/DSCF0816.jpg)