New Starter, Slipping/Slight Grinding Noise
I replaced my starter and now every once in awhile I get a grinding/slipping noise. The starter is seated properly, all connections have been cleaned and tightened, the pinion gear is still in great condition, the flex-plate shows no wear. I talked with two different BMW mechanics and they both say the starter is no good based on the symptoms. I bought a reman (Bosch housing but not a Bosch Reman) from Auto Zone. I took the starter back to Auto Zone and it tests fine. Is it possible that its not under enough load during the test to show any faults? In hindsight I wish I had bought a Bosch to begin with, but here we are. Has anyone heard of anything similar to this? I hate to buy another starter if that isn't the case.