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Torque Converter?
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=79650		 Page 1 of 1
Author:  tedder [ Sat Jul 19, 2014 11:09 am ]
Post subject:  Torque Converter?
As you can see I have 2 of these little critters and the are like night and day the way they drive.

When I go up a slight incline in cruse control at 65 MPH in my CRD it seems to bog down and the speed drops 1-2 MPH. Were as with the wife's CRD it don't bog at all and the speed stays constant.

Could this be the torque converter in mine going out?
Author:  diesel_guy86 [ Sun Jul 20, 2014 8:28 pm ]
Post subject:  Re: Torque Converter?
I'd say either a boost leak or air in fuel. Does it do anything else different, like start harder or anything?
Author:  WWDiesel [ Sun Jul 20, 2014 9:34 pm ]
Post subject:  Re: Torque Converter?
John, TC should not cause loss of speed unless you feel TC slippage or chatter when slightly accelerating up an incline while transmission is in total lockup...... :roll:
Author:  CATCRD [ Mon Jul 21, 2014 1:50 pm ]
Post subject:  Re: Torque Converter?
If yours has the GDE tune then that would be the reason.
Author:  tedder [ Tue Jul 22, 2014 10:17 pm ]
Post subject:  Re: Torque Converter?
WWDiesel wrote:
John, TC should not cause loss of speed unless you feel TC slippage or chatter when slightly accelerating up an incline while transmission is in total lockup...... :roll:


I have had it shutter while going up a hill when the speed is below the 5 speed shift point and above the down shift speed. I would assume the trans is fully locked up at that speed?

diesel_guy86 wrote:
I'd say either a boost leak or air in fuel. Does it do anything else different, like start harder or anything?


A boost leak is possible. I had this system before changing the rockers so it would have to be the intercooler or somewhere from the piping to the EGR valve.

CATCRD wrote:
If yours has the GDE tune then that would be the reason.


Both have the GDE tune. I never heard of the GDE tune causing something like this?

Both CRD's have good acceleration and get good mileage. I just went on a 4500 mile trip again the first 2 weeks of July and had no problems other that this. I have had this ever since the beginning just thought I would through it out there to see what all the minds in LJ could come up with. However, this problem is irritating at times. :5SHOTS:
Author:  CATCRD [ Tue Jul 22, 2014 11:23 pm ]
Post subject:  Re: Torque Converter?
I don't know if they still do it, but the earlier GDE tunes allowed mph to droop slightly on uphill grades to save fuel. I had them omit that feature on my tune after disliking if on my wife's CRD. They drove different, as you described.
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