F150online Forums - 91 PCV Valve Location

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star_f150

01-17-2007 10:55 AM

91 PCV Valve Location - HELP

Okay... i spent an hour last night trying to find the PCV Valve on my 91 F150 5.0 4x4 any help on where it might be? My haynes manual talks about it but doesn't tell you where it is.... Thanks!

Steve83

01-17-2007 11:28 AM

It's a PITA because it's UNDER the plenum on the back of the R valve cover. That's why Ford moved it up behind the plenum in '92.

https://www.supermotors.net/getfile/...epointsgas.jpg . https://www.supermotors.net/getfile/...missionsv8.jpg

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