Quote:
Originally Posted by andrewwynn
I thought that was the low pressure line that's why I was confused. Does the AC button need to be pressed for the fan to run? When I bought my car that connector was loose and I had no AC. I did not notice the fan spinning all the time but I didn't try to run the AC since It wouldn't engage.
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You may be right Andrew, I am no HVAC specialist. I assumed it was the high side as it is the hotter of the 2 hard lines but anyway, start engine, turn A/C on and disconnect that sensor plug. The aux fan will slowly ramp up to full speed over 10 seconds if it is operational.