Do you mean PCV? (Positive Crankcase Ventilation Valve?)

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Stay Out Of My Taildust

2000 Black Harley Davidson F-150
5.4 Liter v-8
K&N Air filter
20" Polished Aluminum Wheels
275/45/20 Goodyear GSII's
Billet Front Grille
Front Valence W/ driving lights and Billet Insert
3.55 Rear End
Leather Interior
Heated Seats
Hidden Hitch
Orange Pinstriping
Front and Rear Light Blackouts
Lowered 1" Front & Rear
Block heater

 

i belive its in the back of the motor under the intake mandifold

 

Where is the PVC on a 91 F150 straight six?

Thanks

 

It's on top of the valve cover, way in the back against the firewall. On my '92 it was very difficult to see, but you can see the hose that leads to it. I had to stand on a stool to get to it. Once you get a hand on it pulls straight up. You may have to wiggle it a little to break it loose. Good luck.

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2001 SuperCrew XLT White w/gray interior, pwr seat, console, Bed Extender,Autolight, Class III Hitch, Duraliner,
4x2,5.4,3.55,built 6/00
New Transmission 10/00
Pioneer FH-P4400 HU
Pioneer CDX-P1250 12-Disc CD Changer In Console
Pioneer TS-A6895 Front
Pioneer TS-A6865 Rear
Pioneer GM-X542 Amp bridged at 150W RMS
Bazooka RS-604 under rear seat