Recently when I shift gears (park to reverse, or park to drive), the gears do not shift. I try going back to park or shifting through all the gears and it will stay stuck. I turn off the engine and shift again (park to drive), and no issues. It only happens, one in ten times. The car had been sitting for 20 years and I just got it running. I changed all the fluids and had no issues until now. Ideas on what this is typical of? Thanks
