I took my JK in this morning for a couple small soft top issues. I also took the Nov. 18th service bulletin about flashing the computer I got from this forum.
The dealership hadn't seen the bulletin yet but provided the upgrade.
The upgrade really made a difference (my perception) in below 2000 rpm performance. The hesitation when turning the key to start also went away.

If your JK was made prior to 11/15/06 you might want to contact your dealer for the upgrade.

 

I also had mine done today no more groggy feeling below 2000rpm no real speed impact but at least it shifts a lot smoother then before....will keep everyone updated about my brake issues as it will be going in next week also had them take some pictures of my hood as i have 2 spots under the clear coat waiting to hear the verdict on that one as well. Will be getting my air raid CAI in about 5 days ordered it from quadratec.

 

Hey,

Where exactly do you look for the manufacturers date. I looked on the side of the door and the only date i could find was 11/06

Thanks
Chris

 

Sorry I can't be of more help but I got my mfg date from the door sticker 10/06 so i knew I didn't need to look any further

 

That would be your build date. It only lists month and year (TTBOMK).

 

All Jeeps have this label:



The data highlighted with the arrow is the Month, Day, and Hour your Jeep was completed. The hours are in 0 to 23 format with 0 being Midnight. So the Jeep in this example label was completed at 3:00 PM.

 

Good info! I take it you have the FSM? Were did you get it? I didn't think they were out yet.

Bryan