Valve cover Holes

10

Asked by Dec 18, 2017 at 09:38 PM about the 1977 Ford F-100

Question type: Maintenance & Repair

i have holes in my valve covers the passenger side hole has a pcv valve that goes to a hose that hangs loosly open ended the driver side goes to a hose that connects to the base of the carburetor in the from and has an oil filler cap on it I just want to know where these hoses actually go

4 Answers

11,830

pictures?

1 people found this helpful.
45,655

The PCV hose ran to a manifold vacuum source, I'm a little fuzzy on your description of the other hose, but it sounds like the crankcase breather, it would have plugged into the air cleaner assembly through a grommet with some filter material behind it. These would be the crankcase breather & PCV system; the breather allows filtered air into the top of the engine while blowby gasses are sucked out of the other side of the engine through the PCV valve.

1 people found this helpful.
45,655

A diagram for a 78 Ford truck:

1 people found this helpful.
90,655

The PCV valve plugs directly into the oil filler cap. The hose from the base of the carburetor goes to the PCV valve. On the other side the hose from that valve cover goes to the air cleaner. There's a crankcase ventilation filter on the inside of the air cleaner that the hose from the valve cover connects to. HTH. -Jim

Your Answer:

F-100

Looking for a Used F-100 in your area?

CarGurus has 172 nationwide F-100 listings and the tools to find you a great deal.

ZIP:

Ford F-100 Experts

  • #1
    tennisshoes
    Reputation
    550
  • #2
    MrBlueOval
    Reputation
    360
  • #3
    Rowefast
    Reputation
    320
View All

Related Models For Sale

Used Ford F-150
4,138 Great Deals out of 220,823 listings starting at $850
Used Ford F-250
346 listings starting at $3,500
Used Chevrolet C/K 10
292 listings starting at $15,900
Used Ford Mustang
611 Great Deals out of 39,026 listings starting at $1,395
Used Ford Bronco
207 listings
Used Chevrolet Camaro
644 Great Deals out of 28,923 listings starting at $2,499

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.