Air Conditioning problem
2001 Nissan Xterra
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a/c short cycles at ambient temp 84 degrees, engine at normal temp.(hot).suction press. at 48lbs, and high side (discharge) at 249lbs,(low side guage wanders 3 to 6 psi,below and above average stated. could this be none codensibles in system (moisture) or faulty valves in compressor? tried adding few ounces of refrigerant to see effect, but only raised high side up to higher press, close to cut out with no efect on low side! any suggestions would be hepfull. Was planning on recovering, evacuating for extended( up to 6 hours)and trying a new charge. would like any suggestions in order to reduce time and costs to customer! Thanks - Tony on Maui