idles fine
plenty of power at WOT

just started doing this all at once

in any gear at cruising rpms 1500-2000ish the truck developes a bad shake? it will accelerate out of it and isnt noticed at WOT or idle just crusing?

what could this be?

OFV, lift pump? any ideas

also the clutch isnt slipping and there are no gauges in this truck

thanks

 

If you have plenty of power at WOT then I would start to rule out fuel psi but it wouldnt hurt to hook a gauge up. To be honest im thinking it could be something really stupid that will make you want to hang yourself such as a really bad u joint or low tire press. My truck tires were about 15psi low all the way around and it shook at cruising speed 50-65 but not at lower speeds which makes me think u joints. Could be something else mechanically but that is my guess for now. Hope it helps and good luck.

 

i think we got it figured out. gonna put some seat time in it tomorrow.

 

the motor shakes? mounts?

 

it was a fuel delivery issue