| LOST JEEPS http://www.lostjeeps.com/forum/phpBB3/ |
|
| A light thump http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=25855 |
Page 1 of 1 |
| Author: | kb61751 [ Fri Oct 26, 2007 3:15 pm ] |
| Post subject: | A light thump |
I was wondering if anyone else has experienced, when you come to a stop and let off your brakes, but before you step on the pedal, you sometimes feel a slight jump, or bump, or ?. Mine does it ever once in a while., but only from a stop, before you accelerate. 
|
|
| Author: | Bill.Barg [ Fri Oct 26, 2007 3:57 pm ] |
| Post subject: | |
Yes, this happens to me. I believe that this was explained in an earlier post as a symptom of a torque converter design flaw, but not as a sign of impending failure. It was GMCTD "Vis-a-vis the transmission, that clunk or bump you feel at start-off is Chryslers typical torque convertor problem - to prevent excessive heat build-up when the vehicle is stopped and the trans is in any selected gear range, the t\c is not charged at idle, which causes a slight delay between pedal and go as the pump fills the t\c with fluid and the vehicle begins moving - that's the 'bump' you feel - some are worse than others This is (im)perfectly normal - most any shift kit (I prefer Transgo) will cure this problem and most of the slush-shifting - the slush-shift is mechanical, not electrical: the orifices and springs in the valve-body control the duration, or 'ooze into', of each shift - the ECM shares control of the interval between shifts, the TCM controls the event: 1-2-3-4-5 - you'll need an aftermarket torque convertor (you know the one) to cure the rest of the slush-itis " |
|
| Author: | Sir Sam [ Fri Oct 26, 2007 5:18 pm ] |
| Post subject: | Re: A light thump |
kb61751 wrote: I was wondering if anyone else has experienced, when you come to a stop and let off your brakes, but before you step on the pedal, you sometimes feel a slight jump, or bump, or ?. Mine does it ever once in a while., but only from a stop, before you accelerate.
Mine got worse and worse, turned out to be a loose motor mount. |
|
| Author: | BlackLibertyCRD [ Fri Oct 26, 2007 8:04 pm ] |
| Post subject: | |
I think others here had loose motor mounts also with same problem as yours. I would check that first if I was you. |
|
| Page 1 of 1 | All times are UTC - 5 hours [ DST ] |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|