HELP! Air conditioner problem, and summer is coming! - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 05-01-2010, 08:52 AM Thread Starter Rookie
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HELP! Air conditioner problem, and summer is coming!

My ac is failing me now and starting to blow warm air. What I have noticed is that when I am driving at highway speeds or accelerating my ac tends to blow cold but sometimes if im idling to a stop or idling in park the air blows warm. And to fix it most of the time i have to rev the engine quickly to get it to blow cold again. I have a feeling my ac compressor clutch is failing or the pump its self is. If someone could point me in the right direction on how to diagnose it further and how to fix it, it would be greatly appreciated!

2001 F-250 7.3L, 2wd SRW, Straight Piped with a 25in long Black 6in Tip, Semi Air horn, CCV mod, Zoodad mod, Foil Delete, DIY Intake, Ravelco Anti-Theft Device, issopro gauges.

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post #2 of 2 Old 05-01-2010, 09:02 AM
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I believe the unit has a low pressure switch, when it runs low on coolant it keeps the compressor for running and destroying itself. There are some kits on the market that has a gauge for re-charging the system. The gauge can show you if you have leak (low pressure). One sign of leak is the oil seepage and collection of dust at the site. If you re-charge it, it is good to add a little oil. Probably a A/C shop can help.
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