All,
I appreciate all the tips/comments provided.
I finally had a chance to look into this problem this past weekend. I removed the caliper and saw the rubber boot that protects the piston came off a little bit (maybe an inch). Who knows it could be the cause of the problem.
I got a warranty replacement from Autozone and got a brand new (remanufactured) caliper again at no cost.
- This time, I did not grease the pins. There was a very light coat on the pins from the rebuild so I left them alone.
- I make sure the reservoir brake level is between the min/max mark. I must have overfilled last time I bled the brakes.
- The rotor does not even have a lip so it was not replaced.
- The pad is still good and no glazing. I wire wheel the pad.
- Hose was replaced this past Feb 2018 so it was not replaced at this time.
So far so good after about 100miles. I will continue to monitor using infrared thermometer and temperature seems to be staying around 160F (front) after a long drive. Only time will tell.
Here is a pix of the remanufactured caliper: