Cold A/C mod using Excursion heater valve question...

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Jun 16, 2013 | 03:55 PM

#16

Bonanza35

Lead Driver

Joined: Sep 2005

Posts: 9,399

Likes: 188

From: Norco,CA

That's what I thought too. But I like the outside air, so if it cools that down that's the way I'm going to go. Good luck guys, I know you'll like the improvement either way.

Chet

Jun 16, 2013 | 04:24 PM

#17

cj45lc

Cargo Master

Joined: Feb 2010

Posts: 2,298

Likes: 94

From: Delta, CO

Quote:

Originally Posted by cjgray1974

I believe it flows from the pump to the heater core, But I'm not 100% sure. Like David said, which ever one you do will stop the flow.

One way to check is get truck to operating temp, then feel the hoses and see which is warmer.

Just the opposite, water flows from the pass side head to core then to water pump

Jun 16, 2013 | 07:23 PM

#18

fordtruck661

Senior User

Joined: Aug 2011

Posts: 301

Likes: 1

This is the one I got Buy Factory Air Heater Control Valve 74809 at Advance Auto Parts

It allows the coolant to keep circulating.

Jun 16, 2013 | 09:26 PM

#19

tappit01

More Turbo

Joined: Mar 2011

Posts: 683

Likes: 1

From: cincinnati, oh.

Quote:

Originally Posted by fordtruck661

This is the one I got Buy Factory Air Heater Control Valve 74809 at Advance Auto Parts

It allows the coolant to keep circulating.

i hope it works out for you but, did you by chance notice all the bad reviews it got on their site. i'd keep my eye on it.

Jun 16, 2013 | 09:43 PM

#20

fordtruck661

Senior User

Joined: Aug 2011

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Quote:

Originally Posted by tappit01

i hope it works out for you but, did you by chance notice all the bad reviews it got on their site. i'd keep my eye on it.

I did not notice the reviews but have not had any problems yet and seems to be working.

Jun 17, 2013 | 10:06 AM

#21

cjgray1974

More Turbo

Joined: Nov 2012

Posts: 727

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From: Chariton, IA

Quote:

Originally Posted by cj45lc

Just the opposite, water flows from the pass side head to core then to water pump

Thanks for setting us straight.

Jun 18, 2013 | 09:43 AM

#22

ztodd377

Laughing Gas

Joined: Mar 2007

Posts: 898

Likes: 23

From: Tucson

Will it cause any problems have manual shut off valves in the heater core hoses since the coolant is circulating? It seems to me that if its supposed to flow from the head through the core to the water pump and u shut that off, what's the alternate route for coolant to circulate?