HVAC problems , blower? - Diesel Forum - TheDieselStop.com
1999-2007 General Questions General questions related to 1999-2007 Super Duty trucks. If it doesn't fit the other categories, post it here. Gas engine discussion that pertains to all models is allowed. Specific gas engine questions should use the Gas Engines forum.

 
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post #1 of 2 (permalink) Old 12-19-2018, 09:16 AM Thread Starter
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HVAC problems , blower?

I've had an issue with the amount of air coming out of my vents ... when driving with it on high it will get down to blowing almost nothing. When I move the position switch it will switch thru perfectly fine .. I've replaced the blower fan , resistor, replaced the climate control face plate and all the switches behind

Any ideas?

Maybe the vacuum pump ? Or the check valve?
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post #2 of 2 (permalink) Old 12-19-2018, 10:33 AM
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My A/C wasn't blowing out the front vents only the defrost vents so I replaced the vacuum pump and that fixed the problem good luck MERRY CHRISTMAS
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