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  #61  
Old 09-27-2013, 02:43 PM
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Quote:
Originally Posted by JeepersNJ View Post
Folks - is the general consensus that if it ain't broke, don't fix it?

I experience no symptoms in my transmission whatsoever in my 2011. I'm hesitant to let the dealer touch it.
I bought it certified and also not sure if it's been tuned (not sure if there's any way to check). All i can verify is that it has the Volant intake and it pulls tremendously well under almost any circumstance. Throttle is very sensitive.

Are others in the same boat? I usually tend to want to apply any updates to the car, but im not sure there's any advantage in this case...
Thoughts?
I would say you may have a tune because after the update downshifts and throttle are not instant by any means, I dont know if mine is just a lemon or what but if you are ok with the way it drives just leave it. I am openning a case with jeep as my dealership says its the next step, and by case I think they just mean a star case.
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  #62  
Old 09-27-2013, 04:22 PM
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Re: Service Bulletin 21-006-13 '09-'12 WK/'09-'10 XK 5.7L FLASH: Transmission

Quote:
Originally Posted by JeepersNJ View Post
Folks - is the general consensus that if it ain't broke, don't fix it?

I experience no symptoms in my transmission whatsoever in my 2011. I'm hesitant to let the dealer touch it.
I bought it certified and also not sure if it's been tuned (not sure if there's any way to check). All i can verify is that it has the Volant intake and it pulls tremendously well under almost any circumstance. Throttle is very sensitive.

Are others in the same boat? I usually tend to want to apply any updates to the car, but im not sure there's any advantage in this case...
Thoughts?
I don't have a CAI on my JGC but otherwise am like you in that it runs fine and am going to hold off on getting this TSB run on my Jeep until something changes to make it necessary.
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  #63  
Old 09-28-2013, 09:52 AM
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Quote:
Originally Posted by JeepersNJ View Post
Folks - is the general consensus that if it ain't broke, don't fix it?

I experience no symptoms in my transmission whatsoever in my 2011. I'm hesitant to let the dealer touch it.
I bought it certified and also not sure if it's been tuned (not sure if there's any way to check). All i can verify is that it has the Volant intake and it pulls tremendously well under almost any circumstance. Throttle is very sensitive.

Are others in the same boat? I usually tend to want to apply any updates to the car, but im not sure there's any advantage in this case...
Thoughts?
I wouldn't take a chance by taking it in to a dealer to do something to repair something that is not a problem to begin with. Too many experiences with dealerships fixing one problem and causing more problems. Don't take a chance unless you have more confidence in dealerships than I do. Good luck!
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  #64  
Old 10-21-2013, 08:05 PM
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Re: Service Bulletin 21-006-13 '09-'12 WK/'09-'10 XK 5.7L FLASH: Transmission

My 2012 QL Hemi Jeep GC previously had TSB 21-003-13 applied, but that TSB just changed when and how the predictable driveline clunk would occur. My Jeep experiences the fishbite too, but driving in Sport mode makes that tolerable. Last week I had TSB 21-006-13 applied to help with the tranny performance, which I thought was ok but not great. I always thought the Hemi would move the Jeep better than it did, but assumed the fishbite issue was to blame. I waited a week to make sure the fix stuck before reporting back to the forum. The tranny performance has definately improved in the auto mode and the driveline clunk is totally gone. TSB 21-003-13 was for the DCTM and TSB 21-006-13 is for the PCM, but 21-006-13 seems to have fixed the driveline clunk too! Auto mode is more responsive, but still didn't downshift as quickly as I desired in 4th and above. I returned to driving in sport mode where the 4th and above shifts are quick and sure. I noticed that the fishbite is also less due to the torque converter lockup letting go on each minor gas pedal application as evident on the tac. That alone made a big difference. Previously I couldn't tell by looking at the tac if the torque converter lockup was in or out. No more predictable 16 mph clunk, more responsive shifts, and less fishbite - with this latest update, I'm finally satisfied about how she performs and can patiently wait for the fishbite TSB fix.
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  #65  
Old 12-21-2013, 09:36 PM
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Re: Service Bulletin 21-006-13 '09-'12 WK/'09-'10 XK 5.7L FLASH: Transmission

Had this TSB applied two weeks ago. Man, what a difference! Most of the hesitation is gone and I basically stopped using either manual shifter or tow/haul mode. Haven't yet had the chance of trying sport mode because snow mode is more appropriate this time of the year.

I feel a lot happier for driving a Hemi now!
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