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ROUGH Idle When 4WD Engaged
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=24276
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Author:  BKH [ Tue Sep 11, 2007 9:37 pm ]
Post subject:  ROUGH Idle When 4WD Engaged

I've been meaning to post this for months and now I am finally getting around to it.

When my CRD is in 4WD (either p/t of f/t) and in drive, it idles like it has no motor mounts. There is some serious vibration going on. If I slip the transmission into neutral, everything is fine. If I'm in regular real-wheel-drive only mode, you can barely feel the idle when the transmission is in drive.

Do I have a problem, or is this normal?

Thanks!

Author:  BiodieselJeep.com [ Tue Sep 11, 2007 10:25 pm ]
Post subject: 

It isn't normal for mine...doesn't sound right.

OldNavy, if he was reading this as regularly as he did before that Mercedes stole him away from us, would remind everyone that these things were shipped out with low tranny fluid and you should check it. And he would say that the dipstick marks are only useful in the hot range.

Author:  DarbyWalters [ Tue Sep 11, 2007 10:41 pm ]
Post subject: 

Check you trasfercase and tranny mounts also...

Author:  bugnout [ Tue Sep 11, 2007 11:08 pm ]
Post subject: 

Mine was very rough in any 4WD mode when new, but drove it for a while in full time and took it off road and ran through all part time modes, it smoothed out considerably. Changed to synthetic in both diffs, changed the ATF in the transfer case and it got even smoother.

Author:  Bill.Barg [ Tue Sep 11, 2007 11:18 pm ]
Post subject: 

No detected difference in 2wd 4wd hi or lo.

Author:  Timmaah! [ Wed Sep 12, 2007 7:04 am ]
Post subject: 

Occasional rough idle, but it is not related to 4WD. Sometimes it’s related to high humidity

Author:  BKH [ Wed Sep 12, 2007 10:50 am ]
Post subject: 

BiodieselJeep.com wrote:
It isn't normal for mine...doesn't sound right.

OldNavy, if he was reading this as regularly as he did before that Mercedes stole him away from us, would remind everyone that these things were shipped out with low tranny fluid and you should check it. And he would say that the dipstick marks are only useful in the hot range.


Very Funny!!!

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