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8. The A/C system does not function effectively due to an expansion valve malfunction. Fig. 154: Checking Refrigerant Pressure - Expansion Valve Malfunction SYMPTOM DIAGNOSIS CHART 9. The A/C system does not function due to a defective compressor. Fig. 155: Checking Refrigerant Pressure - Defective Compressor SYMPTOM DIAGNOSIS CHART is too hot to touch insufficient charge new Symptoms Probable Cause Diagnosis Corrective Actions Pressure extremely high Frost or condensation on Problem with Excessive Expansion valve Replace Symptoms Probable Cause Diagnosis Corrective Actions Pressure extremely Internal leakage Compression failure Leakage from Repair or
2009 Toyota Tundra 2009 HVAC Air Conditioning - Tundra
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