This is a new one for me. Parked my coach ( 1998 Thor on Chevy P30 chassis) last year and it hasn't been moved this year.
I had a leaking tranny pan so I took this off and replaced the fluid and filter and installed a new gasket. Problem solved.
Now, when trying to move the coach, it goes into gear and moves forward. When put into reverse it feels to be shifting but will not roll backwards. It almost feels like the parking brake is on. So, I wanted to pull it backwards about ten feet to where it was on a concrete pad and it will not move backwards, even in neutral.
Is there a reason that the coach would pull itself forward but will not move backward, even in neutral? Could it have something to do with the parking brake malfunctioning? The parking brake light comes on and goes off when using the switch but not sure how to check if it is operating correctly.