Air conditioning and ventilation problem
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Mountain Pass
Joined: Apr 2009
Posts: 164
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Air conditioning and ventilation problem
2002 F350 with V10. A/C stopped blowing cold. I can hear the clutch clicking on and off, so probably needs refrigerant? Other thing is that with A/C off, the temp control **** turned to cold, and fan on, it blows hot air. On my other vehicles with A/C off and temp turned to cold, I get outside air at ambient temp.
I removed the cover off the evap core under the dash and observed the blend door opening and closing as the temp selector **** is moved. The duct door moves correctly, so am I'm missing something? Is the Ford system such that ambient air is always heated? This happens even in cold temp conditions.
Thanks!
I removed the cover off the evap core under the dash and observed the blend door opening and closing as the temp selector **** is moved. The duct door moves correctly, so am I'm missing something? Is the Ford system such that ambient air is always heated? This happens even in cold temp conditions.
Thanks!
Thread Starter
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Mountain Pass
Joined: Apr 2009
Posts: 164
Likes: 1
After researching this issue more, it appears that hot air blowing with the temp control on cool setting (A/C off) is common on these trucks. Apparently, there's no hot water shut-off or bypass valve?
I thought I saw a link for an aftermarket by-pass valve, is there one available?
I thought I saw a link for an aftermarket by-pass valve, is there one available?
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