Ac blowing warm air - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 06-12-2013, 07:53 PM Thread Starter
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Ac blowing warm air

2004 king ranch with edge programmer 250,000k. Ac is blowing warm air intermittently. No leaks in system just had a few hoses changed trying to find this problem out. It seems that when the coolant temp reaches about 205 the ac quits and then after a while after it cools down to 190 it starts back up. It seems like the truck thinks the engine is super hot and shuts the ac down. If the engine doesnt get that hot is blows great very cld air. The garage working on my problem are stumped. Anyone have a similar problem

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post #2 of 6 Old 06-13-2013, 06:17 AM
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can you pull any codes? Make sure your fan clutch isnt going south before you start tearing into your AC system.

06 CCSB FX4 Lariat

Studded and Deleted, Warren 190/100s, Barder Stage 4, Built Trans, AIS Water/Meth, S&B intake, 4 inch Exhaust

Next:
A fuel system
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post #3 of 6 Old 06-13-2013, 06:21 AM
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If your fan clutch is good then have the garage pull the freon out and take a look at the orfice valve, if its crusted up then replace it and the drier. I had a truck that i was working on do the exact same thing. Turns out the previous owner put AC dye in it and left it. It then crusted up the orfice valve.

06 CCSB FX4 Lariat

Studded and Deleted, Warren 190/100s, Barder Stage 4, Built Trans, AIS Water/Meth, S&B intake, 4 inch Exhaust

Next:
A fuel system
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post #4 of 6 Old 06-13-2013, 12:42 PM Thread Starter
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No codes. Fan clutch is good I'll take a look at the orfice valve
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post #5 of 6 Old 06-13-2013, 04:00 PM
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Mine does the exact same thing. Except at idle the a/c will blow then as soon as i get up to speed its blowing warm. Fan clutch?


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2003 Silver 6.0L PSD CC/SB FX4
EGR Delete, Oil Cooler upgrade
Blue Spring & Banjo Bolt Upgrade
AFE Stage II Intake, MBRP Straight 4" Turbo back
RBP 6" tip
SCT Custom Tuned
Autometer GS series
BFG A/T 285s
Recon Smoked Cab Lights
Recon Interior L.E.D.
Recon 3rd Brake L.E.D.
Custom Fiberglass Center Console
Two 10" Sundown Sa4's, Hifonics 1200 RMS mono
Optima Batteries
Meyers 7.5C Plow
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post #6 of 6 Old 06-13-2013, 04:01 PM
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Correction * does this sound like a fan clutch problem?*

Sorry Not trying to steal your thread


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2003 Silver 6.0L PSD CC/SB FX4
EGR Delete, Oil Cooler upgrade
Blue Spring & Banjo Bolt Upgrade
AFE Stage II Intake, MBRP Straight 4" Turbo back
RBP 6" tip
SCT Custom Tuned
Autometer GS series
BFG A/T 285s
Recon Smoked Cab Lights
Recon Interior L.E.D.
Recon 3rd Brake L.E.D.
Custom Fiberglass Center Console
Two 10" Sundown Sa4's, Hifonics 1200 RMS mono
Optima Batteries
Meyers 7.5C Plow
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