|
|
Content .. 1399 1400 1401 1402 ..
Condition Possible Causes Correction The low side pressure is 1. Low refrigerant system 1. See Refrigerant System Leaks in this group. 2. Refrigerant flow through 2. See A/C Accumulator in this group. Replace 3. Refrigerant flow through 3. See A/C Evaporator in this group. Replace the 4. Faulty A/C compressor. 4. See A/C Compressor in this group. Replace The low side pressure is 1. A/C Condenser air flow 1. Check the A/C condenser for damaged fins, 2. Inoperative radiator 2. Test the radiator cooling fan and replace, if 3. Refrigerant system 3. See Refrigerant System Charge Level in this 4. Air in the refrigerant 4. See Refrigerant System Leaks in this group. 5. Engine overheating. 5. Test the engine cooling system and repair, if The low side pressure is too 1. Accessory drive belt 1. Inspect the accessory drive belt condition and 2. Faulty A/C orifice tube. 2. See A/C Orifice Tube in this group. Replace 3. Faulty A/C compressor. 3. See A/C Compressor in this group. Replace The low side pressure is too 1. Restricted refrigerant flow 1. See Liquid Line, Suction Line and A/C 2. Restricted refrigerant flow 2. See A/C Orifice Tube in this group. Replace 3. Restricted refrigerant flow 3. See A/C Condenser in this group. Replace the HEATER PERFORMANCE Before performing the following tests, refer to Group 7 - Cooling for the procedures to check the engine coolant WARNING: Do not remove radiator cap when engine is hot, personal injury can result. 24 - 6 HEATING & AIR CONDITIONING KJ |