Gasoline in Vacuum Reservoir

[01WHTRNGR]

I’m trying to track down why I only have air coming out of defrost. I unbolted my vacuum reservoir and disconnected a line. Gasoline started coming out. It feels about an 1/8 full. Anybody know why it would be in there? This is on a 2001 4.0

 

[Bgunner]

If the fuel pressure regulator is vacuum actuated then the pressure regulator is bad. this is the only way I can see gas getting into the vacuum system.

 

[01WHTRNGR]

Should the check valve be attached? When I shake the reservoir you can feel it moving around

 

[Bgunner]

Sorry I don't have an answer to that. Maybe someone else will know that.

 

[01WHTRNGR]

Just grabbed a new reservoir. Check valve was broke off on the old one. Doing some more reading, seems like the fuel pulse dampener is responsible for it being full of gas

 

[01WHTRNGR]

PCV elbow ended up having a huge tear in it. Ordered a silicone replacement off of Amazon. Pickup still only has defrost after the replacement vacuum reservoir

 

[Bgunner]

The system is vacuum activated and it is some times possible that the hard vacuum lines behind the dash crack. I'm thinking either the line/s have cracked/bad connection at the switch or heater box or switch may be faulty.

I see under dash work in your near future... lol