The sensors do look new. They did reseal the pan with silicone as I requested. As for the engine fan, I tested it with straight voltage, operated, so I thought it might be a bad fan relay. They tested and determined a ground failure, sensors tested fine. As for the original $430.00, once they realized that I new enough about cars, they backed off the we just know from experience that it needs a rebuild and CVI won't tell us anything, line. The work order reflects the amount I agreed to, and work done, but at this point, it was a loss of trust. Attached is their original work order. I declined the "$1400.00 rebuild.