Re: Shifting Trouble/Muffled Grinding
Whenever I have tranny issues, I always start by changing the tranny fluid and filter. 90% of the time, this will fix it up. Of course, it could be something else, but that's a relatively inexpensive procedure, especially if you can do it yourself.
Even under normal and easy driving conditions, there is wear on clutch discs in the tranny and that material gets trapped in the filter (by design), eventually restricting fluid flow. If fluid flow is restricted, well, it certainly won't shift properly.
As I said, it's a start. I'm not an auto trans expert, though I have overhauled a couple in years gone by.
Dave F. in Rhode Island
'68 Camaro SS Accel DFI 454 (SOLD - I'm a boring Corvette owner now)
Bought my first big-block Chevy in 1970