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SportTrac Discussion
General Sport Trac Discussion
heater core valve vaccum issue
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<blockquote data-quote="scott degroot" data-source="post: 1008462" data-attributes="member: 66039"><p>I'm not quite sure what your problem is because unless the ac is on there is no vacuum to the heater control valve. With no vacuum to the valve it should be in the full heat position. When the ac is turned on and vacuum is supplied to the valve the flow of hot coolant through the valve is cut off so the ac system does not have to overcome a hot heater core. </p><p></p><p></p><p></p><p>So can you explain a little better what your problem is. You said it will not blow hot air but does it blow any air at all? Do all of the blower speeds work? Do the vent positions change accordingly to where you put them? And last but certainly not least do you have automatic temperature control?</p></blockquote><p></p>
[QUOTE="scott degroot, post: 1008462, member: 66039"] I'm not quite sure what your problem is because unless the ac is on there is no vacuum to the heater control valve. With no vacuum to the valve it should be in the full heat position. When the ac is turned on and vacuum is supplied to the valve the flow of hot coolant through the valve is cut off so the ac system does not have to overcome a hot heater core. So can you explain a little better what your problem is. You said it will not blow hot air but does it blow any air at all? Do all of the blower speeds work? Do the vent positions change accordingly to where you put them? And last but certainly not least do you have automatic temperature control? [/QUOTE]
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SportTrac Discussion
General Sport Trac Discussion
heater core valve vaccum issue
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