I'm usually pretty good about self-diagnosing little things here and there but am scratching my head on this one:
I'm out rotating tires and have all four corners up on jack stands. Easily rotated tires as usual, no issues. I figure while the truck is suspended, I'll have the wife come out and turn the steering wheel around while I check the front end and a few other things. I then tell her to put it in neutral and switch to 4High. She does and then eases off of the brake while I'm looking from the side at drivelines. I tell her to go ahead and ease onto the brake and put it into neutral, remove 4High and put it in park. She does all of this but the trans starts grinding when she puts it in park and she doesnt know what to do. I'm immediately able to throw it back in neutral in 3-5 seconds.
I thought it was something she did but I replicated it myself. Heres exactly what I did:
Place vehicle in Drive, let it get up to about 10mph, slowly press brake until I see all wheels are stopped, switch to Neutral while still pressing the brake and then immediately into Park while still pressing the brake.
When in Park, it clicked as if I was driving and slammed the trans into Park. Again, I immediately pulled it out of Park, into Neutral and then Park again a few seconds later (all while firmly keeping my foot into the brake). This is all while the vehicle is suspended on jacks.
What would cause the Parking mechanism to not engage?
Did I do any damage by letting it click/grind for a total of about 5 seconds?