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Old 04-07-2007, 09:35 PM   #1
xxdmxx
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Default K&N Weird sound when I turn off ignition

Hey,
I installed my K&N CAI today. When I checked for leaks after I turn off the ignition it sounds like air is hissing out at the end. Is this normal? If not does anyone know what might be wrong?[/align]
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Old 04-07-2007, 09:50 PM   #2
howarmat
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Default RE: K&N Weird sound when I turn off ignition

Could be the fans spinning down...
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Old 04-07-2007, 10:52 PM   #3
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Default RE: K&N Weird sound when I turn off ignition

yeah once the engine slows down to an rpm to which it cant provide another rotation of the crank, the engine instantly reverses direction due to compression. What you are hearing is the cylinders pushing gasses out of the intake.
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Old 04-07-2007, 10:58 PM   #4
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Default RE: K&N Weird sound when I turn off ignition

Quote:
ORIGINAL: 22kart22

yeah once the engine slows down to an rpm to which it cant provide another rotation of the crank, the engine instantly reverses direction due to compression. What you are hearing is the cylinders pushing gasses out of the intake.
Yep Normal
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Old 04-07-2007, 11:38 PM   #5
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Default RE: K&N Weird sound when I turn off ignition

Both my cars do it.
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Old 04-07-2007, 11:57 PM   #6
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Default RE: K&N Weird sound when I turn off ignition

wait my previous post depends on this...

Is this happening once you shut off the engine, or when you shut the power completely off (key out)
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