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Message: [QUOTE="Lethalthreat7.3, post: 746244, member: 10651"] Have you rotated the compressor by hand to see if it has some compression? Does the compressor cycle on and off at idle or run continuously once the cab has cooled down? Does it start cycling when the engine is brought up to 1800 or so rpm? Is the accumulator sweating? Actual pressures are needed to diagnose. I have alot of people tell me the pressure are "normal", but that is usually not the case. The last "normal" pressures were 75 suction and discharge. Pulled the orifice tube out and reinstalled it correctly. Pressures were then normal 46/260, for the current load in the vehicle. Pressures will vary depending on the heat load in the refrigerant so saying pressures are "normal" can be completely different on a 100* day with a black truck in the sun, to a white truck sitting in the shade on a 85* day. [/QUOTE]

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