Heater Control Valve Install

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AvodahFarm
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Heater Control Valve Install

Post by AvodahFarm »

Getting ready to install the heater control valve that I just received ... when I got the truck there was NO control valve. So, the heat is on all the time, which is not so great in June ... this just became a priority.

Since I'm not replacing a valve it's not intuitive (to me) which line this goes on. I checked the schematics & I'm not seeing it there either. Checked my shop manual which talks about switching out the valve, but doesn't specify where. There's 2 hoses going through the firewall ... I'm thinking the valve goes on the line that is comes from the thermostat - is that right? Thanks, as always, for the good help I get here.
1971 Ford F100 Custom; 240 in-line six
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sargentrs
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Re: Heater Control Valve Install

Post by sargentrs »

I always refer to the "358 original miles" truck for some of these OEM install tips. Here's a pretty shot of what you're looking for. http://www.fordification.com/images/70explpics/17.jpg
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
AvodahFarm
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Re: Heater Control Valve Install

Post by AvodahFarm »

That's it! Thanks sargentrs.

And that gives me some motivation on some things I need to do under the hood ;)

p.s. Sorry I posted in Gen'l Discussion.
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sargentrs
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Re: Heater Control Valve Install

Post by sargentrs »

Yeah, it is an inspirational sight, ain't it? No problem.
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
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fomocoguy
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Re: Heater Control Valve Install

Post by fomocoguy »

I hate to tell you this but from what I understand these trucks could have had one of two heater valves and they are directional. You need to know which one you need. Here's both from oreillys http://www.oreillyauto.com/site/c/searc ... vi=1122589 . You have to look at the line clamp location and determine if you want the direction of flow to be away from the clamp or toward the clamp.
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Kurt Combs
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Re: Heater Control Valve Install

Post by Kurt Combs »

My valve is extremely sensitive, on or off, with one little spot on the controls where it is moderately warm, maybe I have the wrong direction valve? I'll have to check it out.
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basketcase0302
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Re: Heater Control Valve Install

Post by basketcase0302 »

fomocoguy on Wed Jun 06, 2012 5:57 am
I hate to tell you this but from what I understand these trucks could have had one of two heater valves and they are directional. You need to know which one you need. Here's both from oreillys http://www.oreillyauto.com/site/c/searc ... vi=1122589 . You have to look at the line clamp location and determine if you want the direction of flow to be away from the clamp or toward the clamp.
Joe, wasn't that just the 67' year model? :hmm:
Now's where's that thread that talks about the difference between the two heater valves... :doh:
Jeff
http://www.fordification.com/forum/view ... 22&t=46251
SOLD-71 F-350 dually flatbed, 302 / .030 over V-8 with a "baby"C-6, B & M truckshifter, Dana70/4.11 ratio, intermittent wipers, tilt steering, full LED lighting on the flat bed, and no stereo yet (this way I can hear the rattles to diagnose)! SOLD!
Many Ford bumps / one 76' EB / and several dents through the years.
A lot of "oddball" Ford parts collected from working on them for 34 years now!
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Re: Heater Control Valve Install

Post by fomocoguy »

basketcase0302 wrote:
fomocoguy on Wed Jun 06, 2012 5:57 am
I hate to tell you this but from what I understand these trucks could have had one of two heater valves and they are directional. You need to know which one you need. Here's both from oreillys http://www.oreillyauto.com/site/c/searc ... vi=1122589 . You have to look at the line clamp location and determine if you want the direction of flow to be away from the clamp or toward the clamp.
Joe, wasn't that just the 67' year model? :hmm:
Now's where's that thread that talks about the difference between the two heater valves... :doh:
Honestly I don't know for sure. All I know is when I try to look up the heater valve for my 69 everyone shows both.
Joe

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1964 Chrysler New Yorker Town and Country wagon
2006 Dodge Ram 2500 cummins
2005 Ford Ranger
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Re: Heater Control Valve Install

Post by basketcase0302 »

Sure wish the search engine was working and I'd try to find that thread. It had some good info on the difference between the two valve and what years each were in. :hw:
Jeff
http://www.fordification.com/forum/view ... 22&t=46251
SOLD-71 F-350 dually flatbed, 302 / .030 over V-8 with a "baby"C-6, B & M truckshifter, Dana70/4.11 ratio, intermittent wipers, tilt steering, full LED lighting on the flat bed, and no stereo yet (this way I can hear the rattles to diagnose)! SOLD!
Many Ford bumps / one 76' EB / and several dents through the years.
A lot of "oddball" Ford parts collected from working on them for 34 years now!
2008 Ford Escape 4 x 4
ericknight
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Re: Heater Control Valve Install

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