wiredcycle

I own a 2000 3500 dually with 70,000 on it and it has an intermitant stumble at any speed or at idle. It doesn't happen all the time,so it's hard to pin point if its fuel or computer related.Did the filter changes etc. but still does it.My friend that works at dodge says it needs a comp. upgrade while his buddy who works with him who is a master cummins tech seems to think its the transfer pump.Now im new to the site and have already read alot about the pumps failing,anyone have a similar problem?

chuck3

Yes when it was new my Y2K did that exact same thing. There is a reflash that will fix it. Had that done and never had another problem. Let me find the # for you. <br> chuck.

wiredcycle

Thanks for the reply Chuck3.so you think its the comp?Seems to me that if it was the pump it would have gone south by now

chuck3

TSB # 18-24-99 this reprograms the ECM. Fixed mine right up. OK now are you running the comp or what was the question I don't understand?

wiredcycle

The ECM is what I was talking about.Was the upgrade cover under warranty?

chuck3

A lot of things ccan cause Eng stumple. But with mine it would be just like you turned the eng off and back on super fast. It would do it at idle or running down the road just out of the blue, but not too often. I read a TSB on it and it descriped my systoms perfectly so had it done have never had a problem since, this might not be your problem but the stumple I refer to is mostly on the 2000 models. Hope this helps.

chuck3

[quote author=wiredcycle link=board=4;threadid=7486;start=0#71787 date=1038153819]<br>The ECM is what I was talking about.Was the upgrade cover under warranty?<br>[/quote]<br><br><br> Yes it was.

wiredcycle

Yes Chuck it was like turning the truck on and off super fast. its been doing it since july so i figured i should get it done before the real cold hits and ill be stuck on the road thumbing

chuck3

Try the TSB on it, should clear it up.<br> And by the way Welcome to the Site.