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Old Jun 25, 2023 | 03:24 PM
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8088yJ03's Avatar
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AC problems

01 F250 5.4
Trying to get the AC compressor to take a charge but it won't stay engaged.
 
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Old Jun 26, 2023 | 08:31 AM
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It's completely normal for it to short-cycle while charging until an adequate amount of refrigerant gets into the system. Usually, the "on" cycle time will gradually increase as the charge increases.

A common "cheat" is to jumper the low pressure cycling switch to force the clutch to stay engaged for faster charging.

 
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Old Jun 26, 2023 | 02:13 PM
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8088yJ03
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From: TX
Originally Posted by projectSHO89
It's completely normal for it to short-cycle while charging until an adequate amount of refrigerant gets into the system. Usually, the "on" cycle time will gradually increase as the charge increases.

A common "cheat" is to jumper the low pressure cycling switch to force the clutch to stay engaged for faster charging.
I figured it out. It wouldn't engage when I jumped the low pressure or high pressure, but would engage when I jumped the relay. I ran diagnostic on my truck found that the cylinder head temp was malfunctioning. Replaced that and AC works again. Thank you
 
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