Broken wire
Race Director
Joined: Jun 2020
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From: north of Chicago
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not a wire, Its a Vaccum line that is connect to your heater controls
That device is the water shut off valve to help keep heat out of your car when the heater controls are off (stops water from entering your heater core)
That device is the water shut off valve to help keep heat out of your car when the heater controls are off (stops water from entering your heater core)
Thread Starter
Intermediate
Joined: Jul 2022
Posts: 25
Likes: 0
From: Missouri
So, it is more of a tube? How important is it to get it replaced?
Race Director
Joined: Mar 2017
Posts: 11,948
Likes: 4,506
From: Virginia
It's probably not urgent. That valve is likely stuck partially open anyway.
But, if the valve does work (or can be replaced), it can help to keep hot water out of the heater coil in your HVAC system. This will help keep you cooler in the summer. Of course, many of us install manual valves, bypass the core, or plug the ports in the intake and water pump directly, to prevent both extra heat, and the risk of a leaking core ruining our carpet.
Lots of different solutions depending on what you want to do. Do you have a Mity-Vac? You can test the valve operation. You should plug the vacuum leak to the engine from that hose in any case.
But, if the valve does work (or can be replaced), it can help to keep hot water out of the heater coil in your HVAC system. This will help keep you cooler in the summer. Of course, many of us install manual valves, bypass the core, or plug the ports in the intake and water pump directly, to prevent both extra heat, and the risk of a leaking core ruining our carpet.
Lots of different solutions depending on what you want to do. Do you have a Mity-Vac? You can test the valve operation. You should plug the vacuum leak to the engine from that hose in any case.
Team Owner
Joined: Jan 2007
Posts: 53,648
Likes: 878
From: Southern Cal Ca
St. Jude Donor '22
those valves go full open when no vacuum and that means hot water is going to heater.
find some bigger vac hose that will connect the broken small stiff vac hose.
important to keep hot water from reaching heater.
find some bigger vac hose that will connect the broken small stiff vac hose.
important to keep hot water from reaching heater.
Safety Car
Joined: Oct 2007
Posts: 4,379
Likes: 1,740
From: Seattle Area Washington
