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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 12-07-2015, 06:25 PM   #1
X-310-e46-X
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Join Date: Mar 2014
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ccv valve itself diagnose?

is there any way of diagnosing the warm weather ccv valve to see if its good or not? problem is massive vacuum leak, idle bounce 500-1500 rpm, new disa when i spray starting fluid under disa the rpms jump.. when i spray it behined oil filter rpms jump.. bran new icv.. getting both 02 codes.. oil cap sucks when removing, lower ccv hose new and tube not clogged.. was no ring at dip stick tube but i have one to put on.. car drives perfect but idle sucks.
i opened up the ccv valve no sludge.. just some dirty oil when i spray the ccv valve itself while running.. i get a huge rpm jump.. hoses dont apear to be cracked.
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Old 12-07-2015, 07:29 PM   #2
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like on the side of the valve theres a vent with several small holes, and a rubber flap on the inside, should i be able to blow in and out of that or should that just go one way?
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Old 12-07-2015, 08:57 PM   #3
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http://forum.e46fanatics.com/album.p...ictureid=38219
the vent right here.. should air be able to flow in and out?
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Last edited by X-310-e46-X; 12-07-2015 at 08:58 PM.
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Old 12-07-2015, 09:23 PM   #4
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someone yank your ccv-valve and plug both fittings and blow in the third and tell me if it can blow in and out.
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