Heater Core Shutoff - Does it work?
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Senior User
Joined: Jan 2002
Posts: 176
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From: TEXAS!
Heater Core Shutoff - Does it work?
Has anyone installed the Heater Core Shutoff kit? The advertise that it reduces duct temp by 20+ degrees. If this is true it would be a well spent $25 in Texas 
Has anyone installed one? Was it difficult?
Has anyone installed one? Was it difficult?
Senior User
Joined: Jan 2003
Posts: 103
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From: UTAH
Heater Core Shutoff - Does it work?
Chuck,
Seems like the total upgrade cost is around $20.00. Read through Horsepower Junkie's experiences. Sounds like a great mod. Think I'll do it this summer. Let me know if you do it.
Seems like the total upgrade cost is around $20.00. Read through Horsepower Junkie's experiences. Sounds like a great mod. Think I'll do it this summer. Let me know if you do it.
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Joined: Feb 2002
Posts: 191
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Heater Core Shutoff - Does it work?
I followed the link and got the parts but when I tried to install the valve the hose size on the truck is 3/4" but the valve (Heater Valve Part 74809) is 5/8". Has anyone here done this installation? Several people on the linked forum said they have done it with no problem.
99 350 V10.
99 350 V10.
Senior User
Joined: May 2000
Posts: 108
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From: Saint Louis, MO USA
Heater Core Shutoff - Does it work?
In a word, yes, the product works as advertised, as I'm sure the Ranger valve would too. We've only had one day warm enough to require MAX AC, but for the first time, I was frozen out by this truck.
Either way you go, I'm sure you be satisfied with the results.
-IKE
Either way you go, I'm sure you be satisfied with the results.
-IKE
Senior User
Joined: Feb 2002
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Heater Core Shutoff - Does it work?
The Ranger valve does not fit my truck, the hose size is too small. I have an early 1999, delivered in May 1998. Is it possible my heater hose size is different from later ones?
Freshman User
Joined: May 2003
Posts: 45
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From: Alabama
Heater Core Shutoff - Does it work?
I did it on my 250SD PSD. I "T"ed into the red line behind the glove box for control vacuum. All vent positions has the hot water cut off. All other positions lets hot water to the heater. Heater hoses on the PSD is 5/8. What I really like is the vent position, no AC, is usable now where it wasn't before. It was like a heater before.
Last edited by Ehammond; May 11, 2003 at 08:49 PM.
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Senior User
Joined: May 2003
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From: McCaysville,Ga
Heater Core Shutoff - Does it work?
will these valves work on an 87 f-150, need ac florida is too hot!!!!!
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Joined: Feb 2002
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Heater Core Shutoff - Does it work?
It looks like the gas and diesel heater hose sizes must be different. I will have to go to the Ford dealer to see what is on the 03s. Perhaps Ford has a valve that will fit the 99 gas Superduties.
It would be nice if Ford would step up and take responsibility (ie have a recall to install the valve) for this design problem that SD owners have been complaining aboyut for years.
Pete
It would be nice if Ford would step up and take responsibility (ie have a recall to install the valve) for this design problem that SD owners have been complaining aboyut for years.
Pete
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From: charlottesville, va.
Heater Core Shutoff - Does it work?
PeteC:
If you get this thing figured out, please post a part number that will work in the earlier year gas SD's. I have a 2000 5.4 and am very interested in doing this mod. It sound like a great idea.
I will do the same for you if I get a working part number for the 3/4" heater hoses..
Thanks.
Craig
If you get this thing figured out, please post a part number that will work in the earlier year gas SD's. I have a 2000 5.4 and am very interested in doing this mod. It sound like a great idea.
I will do the same for you if I get a working part number for the 3/4" heater hoses..
Thanks.
Craig
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Heater Core Shutoff - Does it work?
I have been surfing for an hour and cannot find the "heater core bypass" anything. Would one of you guys who frequent the site post or email me a link where I can find this product.
Thank you much...
Thank you much...