My PCV valve is totally disconnected from the carburetor. Could this be the reason it stalls out in traffic?

Nolan Rapier

Asked by Oct 10, 2014 at 12:50 AM about the 1978 Ford Thunderbird

Question type: Maintenance & Repair

I've Ben driving and didn't know it was not
connected. But I looked under the cover to
the carburetor and discovered that the hose
was off.

4 Answers

Nolan Rapier

I mean the hose is disconnected

Nolan Rapier

The hose from the manifold is disconnected from the valve.

Nolan Rapier

And there's no way to reattach it its like a piece is missing either from the valve or the hose.


That can cause a vacuum leak, the PCV Positive Crankcase ventilation uses that vacuum on the intake to draw air from crankcase. But a new PCV valve is cheap, under $10 if it has the connection nipple broken off Unless you mean the other end, where it attaches to intake, hopefully it's a screw-in nipple, even if you have to use an EZ-Out tool to get the old one out

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