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CONDITION POSSIBLE CAUSES CORRECTION 5. Coolant level low in the coolant 5. Check and correct coolant 6. Cylinder head gasket leaking 6. (a) Check for cylinder head 7. Water pump impeller loose on 7. Check water pump and 8. Loose accessory drive belt (water 8. Check and correct as 9. Air leak on the suction side of the 9. Locate leak and repair as PRESSURE CAP IS BLOWING OFF STEAM AND/OR COOLANT. TEMPERATURE GAUGE READING MAY BE ABOVE NORMAL BUT NOT HIGH. COOLANT LEVEL MAY BE HIGH IN COOLANT TANK 1. Pressure relief valve in pressure/ 1. Check condition of 2. Head gasket leak or cracked 2. Repair as necessary. COOLANT LOSS TO THE GROUND WITHOUT PRESSURE CAP BLOWOFF. GAUGE IS READING HIGH OR HOT 1. Coolant leaks in radiator, cooling 1. Pressure test cooling system HOSE OR HOSES COLLAPSE WHEN ENGINE IS COOLING 1. Vacuum created in cooling system 1. Cap relief valve stuck. NOISY FAN 1. Cooling fan blades loose. 1. Replace cooling fan 2. Cooling fan blades striking a 2. Locate point of fan blade 3. Air obstructions at radiator or A/C 3. Remove obstructions or 7a - 4 COOLING RG COOLING 2.5L/2.8L TURBO DIESEL (Continued) |