72 Catalina need help

[72catalina]

This is a bit of a two parter. First today i had the issue of the car dying/stalling at stops or low rpm and i have no idea why any suggestions would be helpful. second does anyone know what this is and if it could contribute to the problem?thanks for any help.

 

[melsg5]

It's a broken sensor with what appears to be a vacuum hose connected to it.
With the engine running do you feel suction at the end of the hose?
If you do it's a vacuum leak which will cause stalling.

 

[72catalina]

I checked it does not have any suction. And this is where the lines go if it clarifies things

 

[Kraig1957]

It is part of the fuel vapor canister system. The broken piece is a solenoid that opens when the temperature in the intake manifold water passage rises. and allows fuel vapor in the top of the fuel tank to be sucked through a carbon canister and into the carburetor to be burned. It acts the way a fuel tank vent used to on pre 1970 cars.

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[melsg5]

That is a vacuum port on the carburetor base so either at idle or speeds above idle there will be a vacuum leak if not connected.

 

[72catalina]

what do i need to fix this issue

 

[melsg5]

Find this part or cap the port on the base of the carburetor.

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[72catalina]

are they specific to the year or will any do?

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[Kraig1957]

The one shown in Melsg5 post is the one you need.