My brother-in-law has convinced my wife and son to turn off the air conditioner in the car before shutting down the engine. He says it will make the air conditioning compressor last longer. Any truth to this? If yes, why? Thanks, Mikek
Maybe you should ask him where he heard that and what facts he has to back it up. If it *was* an issue, then why is it not addressed in vehicles manufacturers instruction books??
If you turn off the cold air but leave the fan on for 5 min before you shut off the engine will help keep moisture from fermenting that horrible smell that can build up in the evaporator. Won't make anything last longer, just eliminate the moose fart smell when restarting the air later.
Dear friend on contrary if unit works as it should as soon as you shut off motor any condense water will drain, if you leave fan on the air humidity goes back in to your cab and other places, however you should start the car and idle for short time before you put the air on and if is really hot put the fan on, open windows before engaging air/compressor, let air circulate for little while before you engage compressor. the most people specially females want instant cooling or heat they don't give poor motor not even start running.
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