Does it also gallopIJ We have the same combine and occasionally I'm unable to speed it up past a certain point. If I switch to manual it works 100%. In fact if I switch it over while driving to manual it will almost throw the crop over back of head it goes so fast, depending where I have knob set. I usually run in manual, as it never fails. Sometimes switch back to auto awhile. Must be a problem in the electronics. Any ideas would be appreciated.