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Vibrating part on engine

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Old Feb 13, 2016 | 12:04 PM
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Default Vibrating part on engine

Hello,

I have a 2000 Bravada that is making a noise. I have narrowed it down to this part, which I cannot identify. It is loosely attached to a rubber lined hole on the engine and rattles when I shake it. It is attached to a rigid tubing that goes under the throttle body. My guess is that it is a kind of check valve for the vacuum system.

See attached images.

Thank you,
Nick
 
Attached Thumbnails Vibrating part on engine-20160213_123708.jpg   Vibrating part on engine-20160213_123719.jpg   Vibrating part on engine-20160213_123741.jpg   Vibrating part on engine-20160213_123813.jpg   Vibrating part on engine-20160213_123855.jpg  

Old Feb 13, 2016 | 12:29 PM
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This is your PCV valve. Positive crankcase ventilation system...
 
Old Feb 13, 2016 | 12:32 PM
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PVC valve = positive crankcase ventilation valve - edit I need to type faster lol
 
Old Feb 13, 2016 | 12:35 PM
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Thank you. Are they supposed to rattle? AKA needs to be replaced?
 
Old Feb 13, 2016 | 01:39 PM
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Yes it is supposed to rattle when you shake it. Depending on the amount of vacuum at the time, it may or may not rattle when the vehicle is running.
 
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