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2003 3.7 2WD Bump when coming out of of OD
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=23889
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Author:  oil boiler [ Wed Aug 29, 2007 9:10 pm ]
Post subject:  2003 3.7 2WD Bump when coming out of of OD

Greetings to all,

Just purchased a 1 owner 2003 3.7 2WD Liberty. Had 69K on the odometer and looks like it's had regualr oil changes and air filter but not much else, although it appears to be in generally good condition. Gone through all the regular maintenance items trying to everything up to snuff, plugs, coolant , etc.

Picked up a trans filter and Valvoline ATF +4 for a Saturday job. After dropping the pan and draining the fluid. It was clear I was given the wrong filter ( I have the 42RLE). I also learned that no one in town had the filter. Both Jeep dealers were closed for the weekend. No choice but to clean out the pan , button it up and refill. Took five qts to get back between the upper holes when hot and in neutral. The fluid was clean, red and in good shape with the only particles being the normal "fuzz" that collects on the magnet

My problem is that now the transmission has a noticable bump when the OD drops out on decelaration. I can also duplicate the noise when I hit the OD button on the shifter. Shifting up and down otherwise is fine. I picked up the correct filter today from the dealer and plan to try again this weekend although I'm afraid I may have bigger problems. Could an incorrect level be causing this problem? My manual says 4 qts for a pan dump, but that only got me to the end of the stick. Any help appreciated.

Otherwise, this is a great little rig, 1st Jeep I've owned.
Thanks,
OB

Author:  Eddo [ Wed Aug 29, 2007 10:54 pm ]
Post subject: 

Take it to the dealer or a trans-shop and tell them to do a "Quick Learn". Common problem after changing the fluid. They will hook up their computer and it takes about 2 minutes.


http://www.lostjeeps.com/forum/phpBB3/vie ... uick+learn

http://www.lostjeeps.com/forum/phpBB3/vie ... uick+learn

Author:  saxdogg [ Thu Aug 30, 2007 1:15 pm ]
Post subject: 

Or just drive it for 7-10 days....it will go away on its own. My dealer wanted to charge $75 for that and told me I should have had them do the work....whatever

Author:  oil boiler [ Thu Aug 30, 2007 6:18 pm ]
Post subject: 

Thanks for the quick response. Will post my results when resolved. Very nice forum.

Author:  oil boiler [ Sun Oct 21, 2007 10:26 pm ]
Post subject:  Bump when coming out of over-drive gone!

Thanks to some good advice here on the site, the thunk that had appeared after my transmission oil change is gone. My daughter drove it for another 2-3 weeks after the change and I guess that was enought time for the computer to reset the clutch volume indices. Thanks, great site.
OB

Author:  myjeepwalks [ Sun Oct 21, 2007 10:35 pm ]
Post subject:  Re: Bump when coming out of over-drive gone!

oil boiler wrote:
Thanks to some good advice here on the site, the thunk that had appeared after my transmission oil change is gone. My daughter drove it for another 2-3 weeks after the change and I guess that was enought time for the computer to reset the clutch volume indices. Thanks, great site.
OB


Had the same problem with my sister's pt cruiser. I put a transmission in it and it was banging into first gear. A guy at work had a snap on scanner. He did the quick learn, 10 seconds later it was fixed. All it does is reset the clutch volume indexes. Chrysler tranny's are goofey like that. :roll:

Author:  snowsport [ Sun Oct 21, 2007 11:32 pm ]
Post subject: 

Yep, I'm surprised it isn't standard procedure after a tranny lube change with these vehicles. It only takes a bit of time and saves the customer from having to come back.

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