PCV valve/Crankcase filter location

Tiny
ROCKSTAR1960
  • 1990 FORD F-150

I can't find them? Ford manual is too generic.

any help?
thanks.
bf

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Sunday, April 8th, 2007 AT 10:26 AM

15 Replies

Tiny
BAREFOOTBOB88
  • MEMBER

Usually the pcv valve is located at the top of one of the valve cover gaskets usually towards the back of the engine. The crank breather filter is usually located on the side of the air intake breather assembly where your air filter sits in. Just look around those general areas. Shouldn't be to hard to find.

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Sunday, April 8th, 2007 AT 6:33 PM
Tiny
ROCKSTAR1960
  • MEMBER

Bob,
thanks for the help. What was throwing me off was the aluminum intake manifold on top. PCV valve was hidden in the back under it.

Still cannot locate the crankcase filter. I have a 1990 bronco where the crankcase filter sits under the air filter. Similar setup in the F150 but no crankcase filter and no spot for one.

Is there a chance it doesn't have one? The Owner's manual calls for one, and Kragen's computer shows one as well but I've had no less than four people, myself included, look all over the place to no avail

Any thoughts?
Thanks,
bf

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Saturday, April 14th, 2007 AT 8:12 AM
Tiny
BAREFOOTBOB88
  • MEMBER

This seems wierd. Ah. Your truck should have a crank breather because if it didn't oil would shoot out of the dipstick everytime your truck was running. The crankcase needs the "Breathe". If you cannot find one its pry M.I.A. On the driverside of your truck towards thefront of your engine on the top of the valve cover; there should be a plastic cap that slides into a hole in the valve cover. From this cap there should be a rubber hose coming out of the side of the cap. Follow the rubber hose and you should find where the crank breather is. Or where it should be. Also check your air intake cleaner housing for any empty holes that look like there should be something in it. Its pry where your crank breather should be.
Hope I helped.

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Saturday, April 14th, 2007 AT 11:05 AM
Tiny
ROCKSTAR1960
  • MEMBER

I've had it to five shops. Called the dealer and they say it's under the air filter (like the bronce) it's not.

The hose that comes off the filler cap comes out towards the front of the vehicle, then turns up and into the "Y" connection between the air filter box and the aluminum air manifold. (No filter and apparantly no room for a filter - although you had me checking.)

Isn't this logically where it should be? That or on the PCV valve side? I guess I could jury rig it in place here with some cutting and fitting. Would that be prudent? I'm just trying to check all the boxes on this tuneup. All the data I have says the engine takes one. However, I can't find an exisiting one.

Can take pics if you're interested beyond this.

Thanks
bf

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Sunday, April 15th, 2007 AT 12:46 PM
Tiny
TAURUSWHEEL
  • MEMBER

Isn't that filter one that clips to the aircleaner, the big metal clip on the outside of the aircleaner, quite common piece on a lot of older Fords, both cars and trucks. Mine had a rubber hose directly to the fill cap on the valve cover, car I'm talking of.

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Sunday, April 15th, 2007 AT 6:49 PM
Tiny
BAREFOOTBOB88
  • MEMBER

Well. I got ya some pictures here. I took some of my truck hope they help...

The first picture is where the hose attaches to the cap that sits in the valve cover on the driverside. This hose runs directly over to the air cleaner box.

The second one is of the air cleaner box. The hose that you see is clipped on to the bottom of the box with a metal clip as taurus has mentioned. The crank breather is inside the air cleaner box underneath the air intake filter.


http://www.2carpros.com/forum/automotive_pictures/24739__1.jpg



http://www.2carpros.com/forum/automotive_pictures/24739_pvc_filter_1.jpg

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Monday, April 16th, 2007 AT 4:58 PM
Tiny
ROCKSTAR1960
  • MEMBER

Hi Bob and Taurus.

Similar setup to the Bronco but not the F150. No hose going to the breather box from the crank. I'm beginning to think it doesn't exist on this engine.

I am on the road but when I return I will snap a couple pics of my setup and let you guys give it some thought. Thanks for your help.

Bf

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Wednesday, April 18th, 2007 AT 9:27 AM
Tiny
MANDY V
  • MEMBER

On this vehicle the crank filter is actually in the air filter box under the air filter itself. There should be a hose at the base of the oil fill cap that clips in to the side of the air filter box that then connects to the crank filter.

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Thursday, May 4th, 2017 AT 6:19 AM
Tiny
2CARPROS KEN
  • ADMIN
  • 7,693 POSTS

Great addition to this thread! Please feel free to help out on the site whenever it can add information that will help.

Cheers, Ken

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Monday, May 8th, 2017 AT 12:29 PM
Tiny
RAYVIC
  • 2002 FORD F-150

Engine Performance problem
2002 Ford F150 V8 Two Wheel Drive Automatic 40000 miles

Where is the PCV valve located on the F150. Bought a new one but can't find the old one. Asked some mechanics but they weren't sure either.
Thanks

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Monday, May 8th, 2017 AT 12:30 PM (Merged)
Tiny
DAVE H
  • EXPERT
  • 13,518 POSTS

Positive Crankcase Ventilation (PCV) System cycles crankcase gases back through engine where they are burned. PCV valve regulates amount of ventilating air and blow-by gas to intake manifold and prevents backfire from traveling into crankcase. PCV valve should be mounted in a vertical position. On some applications, PCV system is connected to EVAP emission system. Refer to Vehicle Emission Control Information (VECI) underhood decal.

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Monday, May 8th, 2017 AT 12:30 PM (Merged)
Tiny
GENE1960
  • 1996 FORD F-150

Engine Performance problem
1996 Ford F150 V8 Two Wheel Drive Automatic 170000 miles

Where is the pcv valve located?

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Monday, May 8th, 2017 AT 12:30 PM (Merged)
Tiny
BMRFIXIT
  • EXPERT
  • 19,501 POSTS

V8 5.8 l
upper rear manifold gasket

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Monday, May 8th, 2017 AT 12:30 PM (Merged)
Tiny
ERIC.KEITH@INSIGHTBB.COM
  • 2003 FORD F-150

Electrical problem
2003 Ford F150 6 cyl Two Wheel Drive Automatic

where does the pcv valve go? I can't find it.

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Monday, May 8th, 2017 AT 12:30 PM (Merged)
Tiny
BLACKOP555
  • EXPERT
  • 10,546 POSTS

The pcv valve goes in the valve cover and connects to teh manifold.

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Monday, May 8th, 2017 AT 12:30 PM (Merged)

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