Thread: Now I need some advice / help! AC system / heater control valve assembly
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Old Dec 27, 2017 | 08:49 AM
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onehundred80
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From: Ontario
Default Re: Now I need some advice / help! AC system / heater control valve assembly
Originally Posted by ala_xfire
Mark, Bob has no heat and Bob has no 12v at pin 2.
Given this, why doesn't he have full heat instead of no heat as you describe.
I think pins 1 and 3 go to ground and energize the solenoids to OPEN the valves.
Only way it makes sense

( I will go out and unplug mine in a bit and see what happens )
His first sentence in post number one said he had full heat when the engine was warm.
 
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