is it OK to Leave Cars Air Conditioning On While Car Is Off?. is it bad for the car to START it while a/c button is ON?
Aug 10, 2010 at 11:48 AM
2005 Ford Expedition is it OK to leave the button ON ?
LIGHT HARPER
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I have always told my customers that it should be shut before the engine and not turned on until a few seconds after starting the engine. It puts a large draw on both the engine and the electrical system that can cause hard starting and electrical issues. That is my opinion. I have been working on cars for nearly 30 years. There will be others that say it doesn't matter.
Aug 10, 2010 at 4:18 PM
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