Control Valve after Service - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 10-18-2010, 05:05 PM Thread Starter
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Control Valve after Service

Well after recent service at my local ford dealer, I looked at the heater valve on top of the heater hose that runs to the heater core, and there are no longer any vacuum line running to it. Is this strange? Isn't this valve suppose to close when you run max ac to turn off hot water to the heater core? It's very strange considering 3 weeks ago they replaced my "heater control valve" at the dealership. Is this normal?



2006 F250 King Ranch

Last edited by metstroke06; 10-18-2010 at 05:45 PM.
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post #2 of 14 Old 10-18-2010, 05:13 PM
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Yep. Supposed to have a vacuum line running to it.



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post #3 of 14 Old 10-18-2010, 05:40 PM Thread Starter
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Thats what I thought. There is typically a grey vacuum hose running to the front nipple there. I can't find a line anywhere! I had the headgaskets done, and its like there isn't a vacuum hose anymore. All the other vacuum hoses have correct endings, including a grey line that runs into the ac unit, the other end of that grey line runs into the cab with a black vacuum line. I'll probably take it in tomorrow and be like hey, where's my vacuum line?

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post #4 of 14 Old 10-18-2010, 05:41 PM
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By the looks of your 1st and 2 nd pic, the gray line is right there. Plug it back in to see if you have any issues.

2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
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post #5 of 14 Old 10-18-2010, 05:42 PM Thread Starter
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Naw, that grey line has an end...


It runs off into the cab with a black line, like it's suppose to..

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post #6 of 14 Old 10-18-2010, 05:43 PM
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You can turn on the key, and see if the pump runs. If it does and doesn't stop, there's a leak. Then just find it. If it stops, I would think it made full vacuum and got shut off.



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post #7 of 14 Old 10-18-2010, 05:44 PM
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If they have that gray line going to the HVAC box, pull it off there. It's just a stud to block up the hose if you don't have the inline valve.

2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
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post #8 of 14 Old 10-18-2010, 05:57 PM
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He is right.....

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post #9 of 14 Old 10-18-2010, 05:59 PM Thread Starter
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Quote:
Originally Posted by Lilpooh View Post
If they have that gray line going to the HVAC box, pull it off there. It's just a stud to block up the hose if you don't have the inline valve.
Thank you, solved the problem!

2006 F250 King Ranch
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post #10 of 14 Old 10-18-2010, 06:12 PM
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Quote:
Originally Posted by metstroke06 View Post
Thank you, solved the problem!
I'm not just another pretty face!!

2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
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