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PCV Valve rattling while running?

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Old Oct 31, 2010 | 08:51 AM
  #1  
servo2055chevy's Avatar
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Joined: Feb 2009
Posts: 305
Likes: 1
From: New Jersey
Car: 1988 Camaro Base model
Engine: 305 LO3 5.0L V8 TBI
Transmission: 700R4
Axle/Gears: 10Bolt Rear, Not sure the gearing
PCV Valve rattling while running?

I got an 88 camaro tbi, and when its hot and cold i hear my PCV valve rattling away. Do any of yall know what that could be? I replaced it and it still does it.
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Old Oct 31, 2010 | 08:56 AM
  #2  
jwande's Avatar
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Joined: Jan 2007
Posts: 178
Likes: 0
From: Indpls, IN
Car: 92 Jamaican Yellow Firebird
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
Re: PCV Valve rattling while running?

They are supposed to rattle. If they don't, they are clogged up.
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Old Oct 31, 2010 | 02:58 PM
  #3  
Air_Adam's Avatar
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Joined: Oct 2002
Posts: 9,067
Likes: 1
From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Re: PCV Valve rattling while running?

Yup its normal for them to rattle. Though your valve cover grommet might be hardened up and loose, and amplifying the noise. Try putting in a new grommet and see if it quiets down.
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