Need input on AC problem
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New User
Joined: May 2011
Posts: 23
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Need input on AC problem
2002 F350 7.3 Super D Lariat Dually
AC works great one extended idle (10 hr break) and at lower RPMs. but quits on heavy acceleration and speed over 60, blows but not cold (more like if just the fan were blowing). Only comes back on after turning AC off for a few min. Was told it was compressor, been doing this since last NOV wouldn't it have gone out by now? Freon? Don't think so, blows freezing when it's working. I'm thinking some kind of relay, expansion valve or something. This truck DOES NOT have the climate control (i.e specific temp setting). Any ideas?
"Silly Boys.... trucks are for girls!"
AC works great one extended idle (10 hr break) and at lower RPMs. but quits on heavy acceleration and speed over 60, blows but not cold (more like if just the fan were blowing). Only comes back on after turning AC off for a few min. Was told it was compressor, been doing this since last NOV wouldn't it have gone out by now? Freon? Don't think so, blows freezing when it's working. I'm thinking some kind of relay, expansion valve or something. This truck DOES NOT have the climate control (i.e specific temp setting). Any ideas?
"Silly Boys.... trucks are for girls!"
Cargo Master
Joined: Sep 2007
Posts: 2,624
Likes: 6
From: OR and UT
Check your compressor clutch air gap. Quick and simple to do and will confirm or deny a common problem before you pull your hair out.
