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SYSTEM EMPTY 1. Evacuate the refrigerant system to the lowest degree of vacuum possible (approximately -88 kPa (- 26 in. Hg) or greater vacuum). See REFRIGERANT SYSTEM EVACUATE. Determine if the system holds a 2. Prepare and dispense 0.284 kilograms (10 ounces) of R-134a refrigerant into the evacuated refrigerant system. See REFRIGERANT SYSTEM CHARGE, and proceed to SYSTEM LOW . SYSTEM LOW 1. Position the vehicle in a wind-free work area. This will aid in detecting small leaks. 2. Operate the heating-A/C system with the engine at idle under the following conditions for at least 5 minutes. Doors or windows open Transmission in Park or Neutral with the parking brake set (depending on transmission application) A/C compressor engaged with A/C-heater controls set to Recirculation mode (max-A/C), full cool, 3. Shut the vehicle Off and wait 2-7 minutes. Then use an electronic leak detector that is designed to detect R-134a refrigerant and search for leaks. Fittings, lines or components that appear to be oily usually STANDARD PROCEDURE REFRIGERANT SYSTEM EVACUATE If an A/C compressor designed to use R-134a refrigerant is left open to the atmosphere for an extended period If the refrigerant system has been open to the atmosphere, it must be evacuated before the system can be filled. CAUTION: A leak detector only designed for R-12 refrigerant will not detect leaks in an R-134a refrigerant system. NOTE: Special effort must be used to prevent moisture from entering the A/C system
2007 Dodge Nitro R/T 2007 HVAC Heating & Air Conditioning - Service Information - Nitro
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