Heater controls

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Nov 12, 2017 | 11:44 AM

Shorty Thompson

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From: Central Illinois

Heater controls

Watching " Iron Resurrection " and it reminded of something I'm also having issues with, my heater/ac control selector. It won't switch off of defrost . It blows hot , when the temp's there , but will not switch from 1 spot to the next, hi/lo/vent etc. . Anyone have any suggestions as to where to start ?

Nov 12, 2017 | 01:03 PM

Just Strokin

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From: Tallassee, ALabama

how about giving some info on your truck year and model and if manual or dual climate control, etc

Nov 12, 2017 | 02:41 PM

projectSHO89

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From: St Louis

You lost vacuum supply.

Nov 12, 2017 | 03:56 PM

Shorty Thompson

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Quote:

Originally Posted by Just Strokin

how about giving some info on your truck year and model and if manual or dual climate control, etc

What would you like to know ?

Nov 12, 2017 | 03:57 PM

Shorty Thompson

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Quote:

Originally Posted by projectSHO89

You lost vacuum supply.

Ya think so ? I'm gonna be pulling the dash off before long and taking a closer look soon.

Nov 12, 2017 | 04:06 PM

FiznUKa

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From: Salt Lake City, utah

Quote:

Originally Posted by Shorty Thompson

What would you like to know ?

What year make and model of truck do you have that has the issue?

Nov 12, 2017 | 09:33 PM

projectSHO89

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From: St Louis

Quote:

Originally Posted by Shorty Thompson

Ya think so ? I'm gonna be pulling the dash off before long and taking a closer look soon.

Yes, I think so.

There is no need (usually) to pull the dash to check for this. Of course, if you'd bother to explicitly identify your truck, it would be easier. We are not psychic.

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Nov 13, 2017 | 06:58 AM

projectSHO89

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From: St Louis

Check the PVH solenoid for a cracked body and check the vacuum lines from the supply manifold through the firewall to the HVAC control head.

Nov 13, 2017 | 07:07 PM

#10

Shorty Thompson

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From: Central Illinois

Quote:

Originally Posted by projectSHO89

Check the PVH solenoid for a cracked body and check the vacuum lines from the supply manifold through the firewall to the HVAC control head.

PVH Solenoid ?

Nov 13, 2017 | 07:09 PM

#11

projectSHO89

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Quote:

Originally Posted by Shorty Thompson

PVH Solenoid ?

LMGTFY

Nov 13, 2017 | 07:17 PM

#12

Shorty Thompson

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Quote:

Originally Posted by projectSHO89

LMGTFY

okay , got it

Nov 24, 2017 | 04:40 PM

#13

Shorty Thompson

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From: Central Illinois

Went looking for the PVH solenoid . No luck finding that.So I did the next best option for me. I did find the vacuum line going into the cab area. I did find somethng that looked like the PVH , but won't swear to it . I by-passed it . Now I got control of the heater selector again.