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Old Aug 5, 2008 | 10:52 PM
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St. Jude Donor '17
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Right after shutting off the car I hear a hiss type of noise that sounds to be coming from the center of the engine near the windshield. Sort of a draining of pressure type of sound.

Any thoughts on what this should or should not be ?

Thanks
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Old Aug 5, 2008 | 11:16 PM
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First thought is the HVAC refrigerant still moving. Was the HVAC turned on?
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Old Aug 5, 2008 | 11:18 PM
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yes it was on

That was my first thought also however i never noticed this before.

Is this normal?
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Old Aug 5, 2008 | 11:23 PM
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A/C condensation dripping onto hot exhaust. The warmer the weather, the more you will notice it.
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Old Aug 5, 2008 | 11:58 PM
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Originally Posted by 500hp
A/C condensation dripping onto hot exhaust. The warmer the weather, the more you will notice it.
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Old Aug 6, 2008 | 11:24 AM
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Either condensation dripping on exhaust as noted above or the AC refrigerant moving back thru the system equalizing pressure. Both are normal and you should not worry about it.
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