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PCV valve

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  #1  
Old 09-27-2011, 11:29 AM
harley3348 harley3348 is offline
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PCV valve

Does my 1991 F150 XLT 5.0 have a PCV valve. If yes, can someone point it out.
Thanks
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Old 09-27-2011, 11:36 AM
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timbersteel timbersteel is online now
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Yes, it should. It is located on the rear of the passenger side valve cover. I have a pic in my "'92 Ol'e Blue" album if you need a pic of the location. If you are replacing it, be sure to spend the extra few dollars and get a Motocraft PCV valve as a replacement. Not an OEM equivalent. Your local Ford dealership has them for about $7 or 8 bucks. Hope this helps.
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Old 09-27-2011, 11:38 AM
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Originally Posted by harley3348 View Post
Does my 1991 F150 XLT 5.0 have a PCV valve. If yes, can someone point it out.
Thanks
Yes, it does...


Passenger side valve pan cover, main back.....Simply pull it out, swap with the new one, and push it back into the grommet...
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Old 09-27-2011, 11:40 AM
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Thanks Wes for posting the diagram.
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Old 09-27-2011, 11:44 AM
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Thanks Wes for posting the diagram.
Welcome...Actually, I'd just gotten that pic....lol

More added to my growing library of diagrams, doodads, etc...Need a diagram? hit me up....lol
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Old 09-27-2011, 11:47 AM
harley3348 harley3348 is offline
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PCV valve

Thanks Wes. Great picture. Would you also have a picture of the a/c componets on the same engine. I have what appears to be an a/c pressure switch located right by the oil filler cap. The switch is there with two wires coming out of the top that someone has cut. I am looking to reconnect them.
Thanks again,
Harley
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Old 09-27-2011, 11:51 AM
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Originally Posted by harley3348 View Post
Thanks Wes. Great picture. Would you also have a picture of the a/c componets on the same engine. I have what appears to be an a/c pressure switch located right by the oil filler cap. The switch is there with two wires coming out of the top that someone has cut. I am looking to reconnect them.
Thanks again,
Harley
Ummm I'm not sure of what you're meaning...There is no A/C components ON the engine, except for the A/C compressor....

Lemme see what I can turn up though...
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Old 09-27-2011, 11:56 AM
harley3348 harley3348 is offline
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PCV valve

Wes,
I have a photo of it but when i have tried to send photos in the past i have trouble. I am not exactly a computer genius.
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Old 09-27-2011, 12:02 PM
TheWhiteBeast TheWhiteBeast is offline
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Probably just the fuel injector test plug.
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Old 09-27-2011, 12:42 PM
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here is the pic you sent me......
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Old 09-27-2011, 04:02 PM
ChristopherN ChristopherN is offline
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It's a bit of a pain to change out but, you need no tools to do it.
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Old 09-27-2011, 04:09 PM
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It's a bit of a pain to change out but, you need no tools to do it.

Negatory....Ya need opposable thumbs!
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Old 12-13-2015, 02:35 PM
Jack Schitt Jack Schitt is offline
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1991 F-150, 5.0 V-8

My PCV valve is new all filters are new plenty of suck on the PVC valve and plenty of blow out of the other side (next to oil fill) however there is so much blow, it will blow a quart of oil in 75-100 highway miles out of the air filter intake therefore soaking the air and PCV filters, running down the inner fender. Help! Any suggestions?
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Old 12-13-2015, 03:05 PM
joey2fords joey2fords is offline
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time to test compression.
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Old 12-13-2015, 04:31 PM
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I completely agree on checking compression.

Also, are you using dino, synthetic blend, or Synthetic?

What's the maintenance history of the truck? Could be the oil passages in the head a clogged allowing for the puking into the air filter box.
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