Review on Enhanced Comfort all Year Round with Four Seasons 26715 Auto Heating and Air Conditioning by Atheendra Wroblewski

TERRIBLE. Each o-ring in this kit is not true to size. The diameter is correct (for a 1998 Ford Crown Victoria, correct application according to the Four Seasons) but the circumference of each o-ring was smaller than the Ford equivalent. Since I was at a deadlock, I put the whole thing into an AC system and pulled out the vacuum. Yes initially it held a vacuum but now, literally after 3 weeks, the o-rings are leaking so badly that antifreeze colored compressor oil is visible to the naked eye. I replaced almost the entire system at once and other than those o-rings, there are no issues anywhere else. Needless to say, my AC temp went from 40 to 90. Never again.