Quote Originally Posted by DRD View Post
A lope right after startup that goes away has been a typical thing with the newer base files we use from Chrysler.

Have no idea what causes it but it causes no issues.

Lopes that continue off and on constantly after the truck has warmed up could be a mechanical or sensor issue.

Ray,
Double R Diesel
Thank you Ray, you spent considerable time looking at my logs and even a video but could not pin point the cause.

All I can say is that at first it did not do it, then it began to do it occasionally in reverse, then in drive and now it has gotten worse and now does it at start up and at every stop.

It can get very violent, my wife wont drive it anymore, one of the reasons we bought this truck was for her to use to tow her horse to shows and club outings.

She says it is completely out of control trying to back her trailer on gravel up hill with the thing acting out and it really is.

I have the same problem when I want to back in someplace tight to unload a tractor or excavator the only thing I can do is give throttle to stop the lope or surge but it comes right back as soon as it settles back to idle or off throttle position.

I am beginning to wonder if it is a torque converter issue or related in some way. I am considering ordering and changing the FCA with a new unit from Geno's.

Really at a loss with what to check and look in to.