hissing in engine compartment by belt area
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Joined: Nov 2009
Posts: 824
From: Atlanta, Georgia
hissing in engine compartment by belt area
So I popped the hood after driving to check the engine bay and heard a low hissing sound down by the serp belt area. No leaks but the leak worries me as I could be the water pump or AC compressor, both PITA jobs for me to do as I no longer have access to a full garage anymore.
does anyone have more info to determine if this is normal or whether I need to shelf any future mods and purchase a new water pump or ac compressor instead?
Thanks!
does anyone have more info to determine if this is normal or whether I need to shelf any future mods and purchase a new water pump or ac compressor instead?
Thanks!
Member
Joined: Sep 2015
Posts: 1,128
From: Digging in your fridge
Normal.
Any time the AC compressor has been operating (with AC on, auto function, or defrost), it will be normal to hear hissing after you shut the engine off, as pressures inside the AC system slowly equalize.
Any time the AC compressor has been operating (with AC on, auto function, or defrost), it will be normal to hear hissing after you shut the engine off, as pressures inside the AC system slowly equalize.
Member
Joined: Sep 2015
Posts: 1,128
From: Digging in your fridge
The AC noises can go on for a good 10 minutes or more after you shut the car off.
Note: If you smell hot antifreeze (sickeningly sweet smell) that would be a problem that needs pursued further.
The typical AC noises will never cause a smell.
Note: If you smell hot antifreeze (sickeningly sweet smell) that would be a problem that needs pursued further.
The typical AC noises will never cause a smell.
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