Главная Automobile - Toyota Toyota Sequoia - Repair manual 2005 year
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I01389 Condition: Insufficient cooling I01449 Condition: Does not cool (Cools from time to time in some cases) AC–6 – AIR CONDITIONING AIR CONDITIONING SYSTEM 3733 (4) Poor circulation of refrigerant Symptom seen in refrigeration system Probable cause Diagnosis Remedy Pressure low on both low and high pressure sides Frost on tube from receiver to unit Refrigerant flow obstructed by dirt in receiver Receiver clogged Replace receiver (5) Refrigerant does not circulate Symptom seen in refrigeration system Probable cause Diagnosis Remedy Vacuum indicated on low pres- sure side, very low pressure indi- cated on high pressure side Frost or dew seen on piping on both sides of receiver/ drier or ex- pansion valve Refrigerant flow obstructed by moisture or dirt in refrigeration sys- tem Refrigerant flow obstructed by gas leakage from expansion valve Refrigerant does not circulate (1) Check expansion valve (2) Clean out dirt in expansion valve by blowing with air (3) Replace receiver (4) Evacuate air and charge new refrigerant to proper amount (5) For gas leakage from expan- sion valve, replace expansion valve |