PCV valve question
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Senior User
Joined: Apr 2011
Posts: 347
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From: San Jose, CA
PCV valve question
Hi there,
Could you please tell me if this is my PCV valve and how can I change it?
Judging by breather filter condition I can assuming that PCV valve needs to be replaced. But I can't remove it from the cap by pulling out.
Could you please tell me if this is my PCV valve and how can I change it?
Judging by breather filter condition I can assuming that PCV valve needs to be replaced. But I can't remove it from the cap by pulling out.
Cargo Master
Joined: Mar 2008
Posts: 2,560
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From: Washington
The part in your photo is the clean air input for the PCV system.
FTE Legend
Joined: Jul 2010
Posts: 32,875
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From: Northeast, OK
However, that is part of your Positive Crankcase Ventilation system. The hose from the PCV valve hooks into vacuum, which pulls oil-laden air out of the engine through the PCV valve. But, that air has to be replaced, and it comes in via the filter, which is the black foam thing in your picture, and it sits in the Napa piece which fits into the air cleaner. The Napa piece connects to the hose in your picture, which connects to the part that goes into the valve cover, AKA the oil fill.
Saying it another way, the vacuum pulls air into the PCV system via the filter, through the hose into the driver's side valve cover (assuming an 8 cylinder engine), from that valve cover through the crankcase or lifter valley to the other valve cover, and from there through the PCV valve into the manifold or carb to be burned with the fuel.
Saying it another way, the vacuum pulls air into the PCV system via the filter, through the hose into the driver's side valve cover (assuming an 8 cylinder engine), from that valve cover through the crankcase or lifter valley to the other valve cover, and from there through the PCV valve into the manifold or carb to be burned with the fuel.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 783
From: Simi Valley, CA
Could you please tell me if this is my PCV valve and how can I change it?
Judging by breather filter condition I can assuming that PCV valve needs to be replaced. But I can't remove it from the cap
by pulling out.
That is not the smog valve! What you see in oil cap is: C8AZ-6767-B plastic elbow.
Judging by breather filter condition I can assuming that PCV valve needs to be replaced. But I can't remove it from the cap
by pulling out. That is not the smog valve! What you see in oil cap is: C8AZ-6767-B plastic elbow.No smog valve shown in above pic, it's either still in valve cover (fits into rubber grommet: E7AZ-6A892-A) or is missing. The grommet may still be in place since it twists on/off.
Smog hose and plastic elbow (384411-S) that is retained by a clip (D1AZ-9E628-B) to crankcase ventilation filter (9D695).
Drivers side oil cap (D3AZ-6766-A) with replaceable rubber grommet (C8AZ-6A892-D) and plastic elbow (C8AZ-6767-B) installed in it.
Replaceable by itself foam crankcase ventilation filter (9D697)
Crankcase ventilation filter (9D695), fits inside air cleaner...its nipple pokes thru hole in air cleaner, is retained by a clip (D1AZ-9E628-B) that also retains the plastic elbow (384411-S).
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Senior User
Joined: Apr 2011
Posts: 347
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From: San Jose, CA
I found it! It was on the other side from the 'oil fill cup'.
Question: Does it suppose sit in tight? my was kind of loose, I pulled it out without any effort and I felt that there is no rubber to hold it tight.
Please help.
Question: Does it suppose sit in tight? my was kind of loose, I pulled it out without any effort and I felt that there is no rubber to hold it tight.
Please help.
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Ford Parts Specialist
Joined: Nov 2006
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From: Simi Valley, CA
E1DZ-6A666-A .. Smog Valve (Motorcraft EV-118).
E7AZ-6A892-A .. Grommet, Smog Valve to Valve Cover.
Both of these are available from Ford and a gazillion autoparts stores.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 783
From: Simi Valley, CA
I listed the part numbers for the valve and grommet and their applications in post #9, and edited out my comments.
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kameronth
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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