I have the 2.5 in my yj with 31 inch mts. When I am going 50-60mph up hills in 4th or 5th gear, and I step on the accelerator, the engine revs and rpms increase, but I get no acceleration. It's seems as if it is slipping out of gear or running out of power, but if I floor it the engine revs up and I lose all acceleration, but when I let off the accelerator it goes back to normal and catches again. The drivetrain works great at all other times, even off road or when I really try to accelerate in 1st-3rd gear, the clutch seems fine.
Is this the clutch or tranny? Or just a weak motor with big tires?
Is this the clutch or tranny? Or just a weak motor with big tires?