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Heating & Cooling 3rd Gen Dodge Ram Heating & Cooling Problems and Questions.


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  #1  
Old 04-06-2010, 08:13 AM
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Default A/C compressor cycling rapidly, still cold, but not at idle

Recent problem seems to be getting worse.

When idling, the a/c doesn't want to work, and you can hear the compressor coming on for a second, then switching right back of for 5 or so seconds, then trying again.

Yesterday, it started to feel like it was pulling my idle down about 500 rpms when it cycled.

But, if I get out of idle and start driving, it cools down just fine. Freon level appears to be ok, per my gauge.

Worse when the air is warm, no problems at night when outside temps are cooler.

2004 Ram 1500 with 5.7.

What should I be looking at?
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Old 04-06-2010, 08:32 PM
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What is the ambient temp and what pressures are you getting on the high and low sides? Rapid cycling of the compressor clutch makes me think the level is low. The only way to be sure about the level is to recover and weigh the refrigerant charge.
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