PCV valve location?
01-22-2010, 04:08 PM
#3
Just call me sean. Really
On my '91 300, the valve is on the back of either the head or the intake manifold. I'm pretty sure it's the head, and it was a PITA to reach. That may give you a starting point just as somewhere to look
01-22-2010, 04:19 PM
#4
Senior Member
On my 88. Passengers side all the way in the back in valve cover. Can't even see it its kind if hidden under upper intake. You can reach it by laying over motor and reaching behind motor. Pita !
07-19-2017, 09:45 PM
#6
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Locating and Replacing PCV valve on 1994 F150 5.0 L V8
This is what worked for me:
I found the PCV valve on the top side of the rocker arm cover on the passenger side, right on top at the end close to the firewall solely by running my hand along the top surface. At no time was I able actually to see the PCV valve before removing it. I pulled upward, vertically, and the base popped right out of the rocker arm cover grommet easily.
The valve has a right angled nipple that plugs into the hose that runs around to the driver side and up to the intake manifold. That right-angled nipple on the top of the PCV valve did not come out of the hose easily, and in fact quickly broke right off - it was very thin plastic to begin with, as well as being old and brittle. I then had to pull the hose around to the driver side where I could work on it, and remove the broken-off piece that was still inside the hose, with a screwdriver. Re-assembling was simple, except for finding the hole on top of the rocker arm cover, which, again, had to be found by running my hand along the top of the rocker arm cover. As I say, at no time was I ever able actually to see the PCV valve in place - the actual removal and re-insertion had to be done solely by feel.
I found the PCV valve on the top side of the rocker arm cover on the passenger side, right on top at the end close to the firewall solely by running my hand along the top surface. At no time was I able actually to see the PCV valve before removing it. I pulled upward, vertically, and the base popped right out of the rocker arm cover grommet easily.
The valve has a right angled nipple that plugs into the hose that runs around to the driver side and up to the intake manifold. That right-angled nipple on the top of the PCV valve did not come out of the hose easily, and in fact quickly broke right off - it was very thin plastic to begin with, as well as being old and brittle. I then had to pull the hose around to the driver side where I could work on it, and remove the broken-off piece that was still inside the hose, with a screwdriver. Re-assembling was simple, except for finding the hole on top of the rocker arm cover, which, again, had to be found by running my hand along the top of the rocker arm cover. As I say, at no time was I ever able actually to see the PCV valve in place - the actual removal and re-insertion had to be done solely by feel.