Ok, my truck is driving me crazy. It has done this odd bucking thing twice on me when coming back from long trips. It gets so bad that sometimes it wont go over 25mph. It runs, bucks violently, kind of dies, catches again, goes, bucks violently... over and over and over. UGH!

The first time it did it, I let it sit over night, next day it was like nothing ever happened. It ran for a month with TONS of miles with no problems. Then it did it again, on the way home. It was awful. Got it home and pulled the top of the Weber off to check the float level. It was off in the closed position but the stroke was about right. I adjusted everything, took it out for a test run and it ran smoother than ever.

Then I pull out on the road after putting say 80mi on it, 50 of which were straight highway miles and boom. There it goes again. It was bad this time, in stretches I couldnt do over 25mph. Killed me.

This is a 22R with Offy and 32/36 Weber. I did adjust the float... and the accelerator pump seems to work. It doesnt matter how long I have driven it, it has happened at the end of a 4hr drive, 1hr drive and 2hr drive. But if I start it up tomorrow it will act like it never happened.

Any ideas on troubleshooting this little thing?

Thanks!

Jason

 

still have an EGR?