zuesandsadie
New member
I am having trouble with my massey. It will start and run great but after good and hot, the hydrostatic will not move forward. Can back up. Starts getting slower in midrange, shift to low and in 15 minutes or so won't go up slightest hill. Engine never slows or stalls, but pedal tries to push back against your foot and will make a noise sounds like hydraulic cavitation. Changed all fluids and filters twice, including screens. Still doing it. Could this be pressure relief valve?