Air Conditioner - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 04-18-2010, 11:22 AM Thread Starter
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Air Conditioner

After helping load out a semi trailer with a little over 600 small square hay bales, I hopped in the truck and turned on the A/C. It worked fine for probably 10min then started blowing warm and never cooled down again. Yesterday, we raised the hood and investigated finding that the pump will run for one cycle, then not run anymore after that until started the next time. The pump is not stuck and it turns just fine. We added about one can of coolant to it and it seemed to get cooler but after it ran it's one cycle we couldn't get it to run again.
Anybody have any ideas? With summer approaching it would be really nice to get the A/C working properly.

My truck:
99.5 F250 4x4 Ex cab long bed
7.3, zf6
Swamps 175/30's
Cales tunes
DIY Intake & Zoodad mod
Muffler Delete
Foil Delete
DIY leveling kit
AIH delete
Autometer Phantom II Boost and Pyro
Luk Clutch

Dad's Truck:
2001 F250 4x4 Ex cab short bed
7.3, 4R100
Muffler Delete
DIY Intake & Zoodad mod
Foil Delete
AIH Delete
DP Tuner F5
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post #2 of 2 Old 04-18-2010, 02:16 PM
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Sounds like you could still be low on freon. After it runs for a bit the Low Pressure cut-off Shuts off the compressor because you're drawing the low side empty.

Get some gauges on it to really tell what's going on.......
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