Vac operated component

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Vac operated component

Diesel Engines A forum dedicated to diesel engines fitted to Volvo cars. See the first post in this forum for a list of the diesel engines.

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Jan 31st, 2019, 15:06	#1
Andy 2011 XC60 New Member Last Online: Nov 16th, 2019 15:08 Join Date: Jan 2019 Location: Yelverton, Devon	Vac operated component Hi there, can anyone identify the component in this video that is making that chattering noise? Its caused by the valve on the vac pump failing and not pulling enough vac to hold this part open or closed which ever it is. I've had the valve changed and it no longer chatters when idling but still does when throttling off once engine has reached operating temp. I'm wondering if this part needs changing also but I have no idea what it is or what it does. Its on a XC60 2011 D5 215hp auto awd. Can anyone help?? https://www.youtube.com/watch?v=OHD8WR_Ec8o

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