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Discussion Starter #1
so the other day, i start up the truck....wait a few seconds then i turn the A/C on to the "1" setting and i get a loud "pssshchunk" noise.

is that anything to be worried about?

ever since, when i turn on the A/C, i get a moderately loud hissing noise for a few seconds.....
 

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Discussion Starter #3
i know compressors usually make some type of noise but the "chunk" sound seemed a bit unnatural....
 

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Yup, I get it too...and got the same noise in my Mustang...must be normal.
 

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i am reviving this thread cause i have an A/C noise that i do not know if it is normal or not.

when i run the A/C there is a hisssss / woooossshhhhhh sound about every 10 seconds like a liquid vaporizing noise.

is this normal it is pretty loud and annoying but the A/C seems to work great. Anyone else have this same noise??
 

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Yeah, the magnetic clutch that connects the AC system to it's pulley attached to the engine belt slips a little bit on its first engage of the drive, ... my rodeo has been doing this since 40k miles, it's got 130k now and the AC still rocks. I just choose not to worry about it, if the clutch goes, not too $$$ of a repair of the AC clutch.
 
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