Heater hose's
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Fleet Mechanic
Joined: Feb 2015
Posts: 1,664
Likes: 111
From: southwest missouri
6 by 8 I do have new coolant in. I figured that I would have to drain the thing down a bit since the hose hook ups are lower than whats in the radiator. The Fumoto drain plugs are nice. I use them on the pan since I sale them. Thank you for getting back to me.
Art.
Art.
Hotshot
Joined: Feb 2004
Posts: 10,788
Likes: 2,595
From: The Shenandoah Valley
But parts books do show it. It isn't needed, but it just stops circulation through the heater core, which is why if overheating, old timers turned the heater on to open the valve. If the heater core is in circulation, then that air your AC is cooling for your comfort is gonna be warmer coming out of the dash vents.
Laughing Gas
Joined: Dec 2020
Posts: 869
Likes: 186
From: Near my truck
I agree with you, and your earlier comments.
My initial point was that the diagram didn't show a valve, a valve like you mentioned, and I've found that diagrams which lack detail, can cause headaches and time wasting.
My initial point was that the diagram didn't show a valve, a valve like you mentioned, and I've found that diagrams which lack detail, can cause headaches and time wasting.
Lead Driver
Joined: Nov 2000
Posts: 6,625
Likes: 342
From: Albuquerque
I don't think the flow direction makes any measurable difference in the heater operation. However, it does matter to the water control valve.If it doesn't flow the right direction it's possible to inhibit the valves ability to open. They usually have an arrow for this.
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