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A/C button when turning heater on in my car?
I have 2000 Chevy Impala.
I noticed that A/C button can be pressed on or off when the heater is on.
Some say A/C button should be pressed off when heater is on, and some say pressing it on makes the heater work better.
What is true?
Should I press it on of off when using the heater?
3 Answers
- Anonymous1 decade agoFavorite Answer
when the A/C is on it helps to dry the air coming in to the car, and if you have your defroster on the A/C pump comes on and of by its self, this is to dry the air be for it gets to the windshield to help defrost the windshield faster.
one way to can tell this is happening is when the defroster is on you will hear your motors RPMs drop when the A/C pump comes on and raise again when it goes off.
hope this helps you under stand how it works
Source(s): i am a state licensed master mechanic & ASE certified technician & over 30 years of building hotrods & classic cars & harleys owner of Toads Timeless Restorations (est 2000) 7 1st place in class at detroit autorama 2 1st place at woodward dream cruise and my work has been in car craft, hot rod and super chevy magazine's - Joe B.Lv 61 decade ago
Having the air conditioner on while running your heater/defroster helps clear the windows better and prevents them from fogging up again in cold weather..
- 1 decade ago
Depends !! If your windows start fogging up when u have the heater on push the A/C switch on. This will help remove mos true.
