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Is this "The Tranny Issue?"
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=10914		 Page 1 of 1
Author:  greiswig [ Sat Jul 29, 2006 12:53 am ]
Post subject:  Is this "The Tranny Issue?"
Well, twice today on a slight incline, there was a sensation almost as though I was driving over a rumble strip, but not quite as intense. This was not during a shift. It was subtle enough that I thought maybe I had just driven over something...while I thought the infamous shudder was REALLY obvious.

Then, parking pointed uphill in my fairly steep driveway, I put it in park and let off the brake, and there was a loud "clunk" and the whole vehicle shifted backward several inches before catching.

14k on the odometer, ATF fluid full, 2005 CRD but between the date ranges given in the first TSB. Is this the first symptom of some serious problems?
Author:  Ranger1 [ Sat Jul 29, 2006 11:24 am ]
Post subject: 
I wouldn't think this is the tranny shudder. Those that have it know it. It ranges from a slight shudder after acceleration and cruise in the 55 - 65 mph range, to an outright violent bucking and lurching in the powertrain. If you have it, you know it. Yours might be the drainback issue, which I would gladly trade for the tranny shudder problem. At least a couple of tranny filters will address drainback problem.

I'm still amazed that some CRD's have the tranny shudder and others don't - but there are so many mass produced components involved that I probably shouldn't be. But deep in my heart I suspect that a fix is probably known, but not cost effective.
Author:  RFCRD [ Sat Jul 29, 2006 12:33 pm ]
Post subject:  Re: Is this "The Tranny Issue?"
greiswig wrote:
Well, twice today on a slight incline, there was a sensation almost as though I was driving over a rumble strip, but not quite as intense. This was not during a shift. It was subtle enough that I thought maybe I had just driven over something...while I thought the infamous shudder was REALLY obvious.

Then, parking pointed uphill in my fairly steep driveway, I put it in park and let off the brake, and there was a loud "clunk" and the whole vehicle shifted backward several inches before catching.

14k on the odometer, ATF fluid full, 2005 CRD but between the date ranges given in the first TSB. Is this the first symptom of some serious problems?

Wild assumption, but are you trying to back uphill when this rumbling happens? There is an issue with this model of transmission and the way the tranny pan is designed. If you point the Jeep nose downhill, the tranny fluid drains away from the pick-up tube leaving the pump sucking air. I complained about the same problem when I met with the DC reps. Their solution was to maneuver so that I don't have to back uphill (ie... they can't fix it).
Author:  greiswig [ Sat Jul 29, 2006 11:57 pm ]
Post subject:  Re: Is this "The Tranny Issue?"
RFCRD wrote:

Wild assumption, but are you trying to back uphill when this rumbling happens? There is an issue with this model of transmission and the way the tranny pan is designed. If you point the Jeep nose downhill, the tranny fluid drains away from the pick-up tube leaving the pump sucking air. I complained about the same problem when I met with the DC reps. Their solution was to maneuver so that I don't have to back uphill (ie... they can't fix it).[/quote]

Hee hee! Good solution. "Doctor, it hurts when I do that." "Then don't do that!"

Anyway, no, this was pointing uphill. If it happens any more, I'll post it here. But Ranger1 seems to be saying what I recollect: if you have it, there will be no mistaking the tranny shudder for anything else.

Thanks!
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