VALVE ASSY, VACUUM SWITCHING, what's this for ?

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VALVE ASSY, VACUUM SWITCHING, what's this for ?

11-21-2013, 10:43 AM

Post: #9

kawo

Junior Member

Posts: 31
Joined: Apr 2012
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I hope I understand how the VSV work and according to the manual, the VSV should turn off after 10 seconds from startup of engine.

However, I keep hearing very loud hissing sound from the VSV. It seems it is always on? It seems that some electric devices is keeping it open all the time? How should I diagnostic this problem? Will this strange VSV behavior lead to a jumpy idle(which is intermittent at red-light and looks like you did not bleed the coolant)? Will this strange VSV behavior lead to engine check light when I floor the gas?

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Messages In This Thread

VALVE ASSY, VACUUM SWITCHING, what's this for ? - Uzelac - 02-02-2009, 06:52 PM

[] - banpei - 02-04-2009, 10:18 AM

[] - Jonny Rochester - 02-06-2009, 01:13 PM

[] - parrot - 02-06-2009, 02:35 PM

[] - Uzelac - 02-07-2009, 01:00 AM

[] - Uzelac - 02-07-2009, 01:04 AM

[] - parrot - 02-07-2009, 01:51 PM

[] - Uzelac - 03-18-2009, 04:56 PM

[] - kawo - 11-21-2013 10:43 AM

[] - jondee86 - 11-22-2013, 10:40 PM

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