A/C compressor always engaged?

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Nov 19, 2006 | 12:57 AM

#16

expy03

Senior Member

Joined: Mar 2005

Posts: 1,448

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From: Texas in the heart

Quote:

No that is a gas mileage and reliability thing

Must agree. I lose 1 mpg with compressor on. And with a cold engine, having the Compressor on is just adding to the wear and tear during warm up. I always turn everything off before engine shut down.

Nov 19, 2006 | 12:57 AM

#17

Quintin

Technical Article Contributor

Joined: May 2004

Posts: 6,509

Likes: 6

From: Georgia on my mind...

Quote:

Originally Posted by gotshot

well I have the thump too. It started every once in awhile but now it even does it at idle. It seems to do it in the mix heat and defrost or defrost position when the compressor kicks in. It started after a cam phaser replacement so I dont know if they messed something up but it is going to the dealer on monday. Ill let you know what I find out.

If they replaced the passenger's side phaser, they probably undercharged the A/C and/or got some air in with the refrigerant when the system was charged.

Nov 19, 2006 | 03:18 PM

#18

gotshot

Member

Joined: Sep 2005

Posts: 69

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From: Tacoma, Wa.

I thought they probably did something. It definantly only does it with the selector switch in mix or defrost only. I praised them for the extra effort they did with finding a bad injector, I guess we all cant bat 1000.

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