This is new. Leaving for Nebraska last week. It's cold out so I let the truck warm up while loading 10min, go get the horses and load them 15 min and hit the four lane. Get down the road 2 miles and it hesitates hard, enough to cause kerplunk from the drivetrain. It literally threw me forward. It did it one time and never missed a beat after.

Now, this morning going on my lovely 100 mile trek to work on "we don't use salt on our roads wyoming" it did the same thing at nearly the same spot.

Starts right up, fp liveable @ 12psi idle/10 @ 70, no fuel leaks.

Any suggestions ?

 

Have you tried the APPS reset?
https://www.dieseltruckresource.com/...n&onlynewfaq=1

 

Never thought of APPS. It sure doesn't act like the typical "dead peddle" syndrome. I am on my second apps which I got cheaply via e-bay. I will try it though.
It's difficult to figure out since it has only happened twice and I really don't drive it the much except when the roads are bad or going on a horsey trip.

 

Haven't tried anything yet. I had to drive the mens wrestling team to vegas in our 1982 Prevo bus, 610 miles in 10.5 hrs, that darn detroit still needs turned up more though! Who can help?

Old blue II has been parked since last wed. I'm not going to do the apps before I drive home tomorrow and see what happens.