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Jeep Liberty Diesel Shift Patterns

19 messages,  Last post on Nov 30, 2007 at 12:22 PM

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What is this discussion about? Jeep Liberty, Transmission, Biodiesel, Diesel, SUV

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#17 of 19 Re: TC LOCKUP [mdamick] by egrasem Oct 06, 2007 (8:20 am)
Replying to: mdamick (Jul 28, 2006 6:32 pm) If you figure out a way to hook up a switch please let me and others on this forum how you did it. That has been something I would like to do for a long time.   Thanks Mitch
#18 of 19 TC lockup by f4windex Nov 26, 2007 (8:50 pm)
New guy here, just adding my observations. I bought a 2006 CRD new on 1 Aug 2006, and have had good luck so far (14000 miles). My transmission in normal mode (as I understand it) shifts to 4th around 40, then locks the TC at 52 in 4th. Accelerating to 63 mph finally makes it shift from 4th to 5th with the TC staying locked. At first, I didn't "get it," and was worried that there was something going wrong at 63mph, then I counted gear changes and realized what I thought was the shift to 5th at 52 was really the TC lockup in 4th... I think the way it works in O/D off mode is great for towing, but is also good for cruising in the 40-50mph range when driving hilly streets. Rather than being in 4th with the TC unlocked and the revs varying widely, O/D off keeps it in 3rd but locks the TC to keep the RPMs relatively low and steady. I routinely use O/D off to accelerate from the lower speeds up to 50 or so, and then go to normal resulting in a shift from 3rd w/TC locked to 4th with TC locked in minimum time and keeping the engine where it seems to really like it. The few times I have towed a trailer, this worked really well and I was impressed with how well it pulled. I specifically avoided heavy throttle when engaging the O/D to take it easy on the driveline. If I could reprogram the shifting, I would have the TC lock in 3rd in normal mode, then shift to 4th the way it does going 4th to 5th. That may be too harsh for the internal components though? I really like my CRD, and hope it doesn't fail me now that I've boasted about it!
#19 of 19 shift point programer by noslenwerdna Nov 30, 2007 (12:22 pm)
Does anybody know if there is a programmer for the Jeep Liberty CRD that can access the shift points and TC lockup?

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