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Transmission shudder
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=88&t=38688		 Page 1 of 1
Author:  silverfox [ Mon Dec 29, 2008 1:42 pm ]
Post subject:  Transmission shudder
I'm hearing of more people having this problem with their '08 Liberty. What are the symtoms of it??? And I've also heard that after the re-flash it can be even worse. What's up????
Author:  richd [ Tue Dec 30, 2008 1:42 pm ]
Post subject: 
A shudder is like a small vibration from the transmission when it shifts into gears.Feels like a lag,or loss of power during shift.I had the TSB done on my wifes KK,and it shifts a lot better.I had TSB#18-027-08 .this also helps the A/C .
Author:  silverfox [ Tue Dec 30, 2008 2:09 pm ]
Post subject: 
richd wrote:
A shudder is like a small vibration from the transmission when it shifts into gears.Feels like a lag,or loss of power during shift.I had the TSB done on my wifes KK,and it shifts a lot better.I had TSB#18-027-08 .this also helps the A/C .


Thanks for explaining it to me. Does this to be a common thing with the 2008's??? What I have noticed mine doing is if I'm doing 30 or 40mph and its at about 1500rpm's, if I slightly step on the gas it will go way up to 2500rpm's. It's kind of annoying in a way....never had a car do that before.
I know the rpm's will go up as you step on the gas , but it's like it searches before it settles back to 1500 or so. Normal on this car????
Author:  richd [ Tue Dec 30, 2008 6:27 pm ]
Post subject: 
Mine does the same thing.I think it has something to do with the electronic throttle control.Your other vehicles probably had a cable for your throttle.Electronic make it more sensitive,and faster reaction then cable.
Author:  Diggerfreek [ Tue Dec 30, 2008 7:03 pm ]
Post subject: 
starting in 07, the throttles are controlled by pwm sensors
Author:  rav [ Wed Dec 31, 2008 9:31 am ]
Post subject: 
silverfox wrote:
richd wrote:
A shudder is like a small vibration from the transmission when it shifts into gears.Feels like a lag,or loss of power during shift.I had the TSB done on my wifes KK,and it shifts a lot better.I had TSB#18-027-08 .this also helps the A/C .


Thanks for explaining it to me. Does this to be a common thing with the 2008's??? What I have noticed mine doing is if I'm doing 30 or 40mph and its at about 1500rpm's, if I slightly step on the gas it will go way up to 2500rpm's. It's kind of annoying in a way....never had a car do that before.
I know the rpm's will go up as you step on the gas , but it's like it searches before it settles back to 1500 or so. Normal on this car????


Mine does the same exact thing, i will have the TSB mentioned above done to see if it fixes it. It is really annoying.

Ravi
Author:  rav [ Wed Dec 31, 2008 10:18 am ]
Post subject: 
Just called the dealer and he says the TSB mentioned above is not applicable for my 08, is there any other TSB's, mine is a late model 08.

Ravi
Author:  Mr Nick [ Wed Dec 31, 2008 11:41 am ]
Post subject: 
silverfox wrote:
richd wrote:
A shudder is like a small vibration from the transmission when it shifts into gears.Feels like a lag,or loss of power during shift.I had the TSB done on my wifes KK,and it shifts a lot better.I had TSB#18-027-08 .this also helps the A/C .


Thanks for explaining it to me. Does this to be a common thing with the 2008's??? What I have noticed mine doing is if I'm doing 30 or 40mph and its at about 1500rpm's, if I slightly step on the gas it will go way up to 2500rpm's. It's kind of annoying in a way....never had a car do that before.
I know the rpm's will go up as you step on the gas , but it's like it searches before it settles back to 1500 or so. Normal on this car????


Torque converter unlocking :?:

That's why I hate automatic transmissions.
Author:  richd [ Wed Dec 31, 2008 1:52 pm ]
Post subject: 
rav wrote:
Just called the dealer and he says the TSB mentioned above is not applicable for my 08, is there any other TSB's, mine is a late model 08.

Ravi


If your KK was built before June 17-08 its included in the TSB.This is the latest TSB,so I would say your is included.
Author:  tjkj2002 [ Wed Dec 31, 2008 7:45 pm ]
Post subject: 
Mr Nick wrote:
silverfox wrote:
richd wrote:
A shudder is like a small vibration from the transmission when it shifts into gears.Feels like a lag,or loss of power during shift.I had the TSB done on my wifes KK,and it shifts a lot better.I had TSB#18-027-08 .this also helps the A/C .


Thanks for explaining it to me. Does this to be a common thing with the 2008's??? What I have noticed mine doing is if I'm doing 30 or 40mph and its at about 1500rpm's, if I slightly step on the gas it will go way up to 2500rpm's. It's kind of annoying in a way....never had a car do that before.
I know the rpm's will go up as you step on the gas , but it's like it searches before it settles back to 1500 or so. Normal on this car????


Torque converter unlocking :?:

That's why I hate automatic transmissions.
No that's JUST called the 42RLE,always been a bad trans,always will be.
Author:  rav [ Thu Jan 01, 2009 9:52 am ]
Post subject: 
richd wrote:
rav wrote:
Just called the dealer and he says the TSB mentioned above is not applicable for my 08, is there any other TSB's, mine is a late model 08.

Ravi


If your KK was built before June 17-08 its included in the TSB.This is the latest TSB,so I would say your is included.


Where do i find the build date?

Thanks in advance,
Ravi
Author:  tjkj2002 [ Thu Jan 01, 2009 10:45 am ]
Post subject: 
rav wrote:
richd wrote:
rav wrote:
Just called the dealer and he says the TSB mentioned above is not applicable for my 08, is there any other TSB's, mine is a late model 08.

Ravi


If your KK was built before June 17-08 its included in the TSB.This is the latest TSB,so I would say your is included.


Where do i find the build date?

Thanks in advance,
Ravi
Look on the inside edge of the drivers door,there is a white sticker that will have the build date,VIN and so on.On the very bottom of that sticker you(small print) you should have a MDH #,that is a more specific build date(Month,Day,and Hour).
Author:  rav [ Fri Jan 02, 2009 12:45 pm ]
Post subject: 
tjkj2002 wrote:
rav wrote:
richd wrote:
rav wrote:
Just called the dealer and he says the TSB mentioned above is not applicable for my 08, is there any other TSB's, mine is a late model 08.

Ravi


If your KK was built before June 17-08 its included in the TSB.This is the latest TSB,so I would say your is included.


Where do i find the build date?

Thanks in advance,
Ravi
Look on the inside edge of the drivers door,there is a white sticker that will have the build date,VIN and so on.On the very bottom of that sticker you(small print) you should have a MDH #,that is a more specific build date(Month,Day,and Hour).


Thanks a lot, just looked at it and the MDH is 111616, so i guess it is 16th November right?
Author:  tjkj2002 [ Fri Jan 02, 2009 11:14 pm ]
Post subject: 
rav wrote:

Thanks a lot, just looked at it and the MDH is 111616, so i guess it is 16th November right?
Yep it rolled of the final assembly line on November 16th at 1600 hours(4pm).
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