2002 Ford F-250 AC only blows cool air over 2000 RPM

Tiny
FIREKEV
  • MEMBER
  • 2002 FORD F-250
  • V8
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
I have replaced both of the needle valves, both low and high pressure switches, it's full of R-134, no moisture drips onto ground and blows cool, not cold air. It only blows cool air at over 2000 rpm anything less and it blows not so cool air. Someone told me it should drip onto the ground but this one does not.
Saturday, August 21st, 2010 AT 10:48 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi Firekev, Welcome to 2carpros and TY for the donation

Its either it has air and moisure forming into ice and blocking off the orifice tube the need vacuuming out or the air blend door actuator is acting up/door binding
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Sunday, August 22nd, 2010 AT 12:04 AM

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