- Joined
- May 25, 2020
- Member Number
- 1362
- Messages
- 2,072
I replaced the old locked up AC compressor on a 97 F-150 4.6l and replaced everything but the evaporator coil in the dash. I drew down a vacuum and began charging the system after the required time had passed and I was good there were no leaks. I got about a can of r134 into the system before I saw sparks come out of the coil area of the compressor and it made a heck of a racket. The new compressor was shipped full of oil so that *shouldn't* be the issue. My question is, what happened? Could it be a bad bearing? Did the new compressor frag itself?