C32 Engine for D11T Track-Type Tractors Coolant Temperature Is High Caterpillar


Coolant Temperature Is High
`
1.1. Probable Causes
2.1. Recommended Actions
3.2. Coolant
4.2. Water Temperature Regulator and/or Pressure Relief Valve
5.2. Radiator
6.2. Faulty Engine Cooling Fan (if equipped)
7.2. Coolant Pump
8.2. Check the Coolant Temperature Sensor and/or the Circuit

Use this procedure in order to troubleshoot high coolant temperature or use this procedure if one of the following event codes is active. Refer to Troubleshooting, "Event Codes" for information about event codes. You must access the engine monitoring system on AVSpare Electronic Technician (ET) in order to view the current trip points for these codes. For information on the engine monitoring system, refer to Troubleshooting, "Engine Monitoring System".

Table 1
Event Code    
Code and Description     Conditions which Generate this Code     System Response    
E361(2) High Engine Coolant Temperature     The engine coolant temperature has exceeded the trip point and the delay time has expired.     The code is logged.    
E361(3) High Engine Coolant Temperature     The engine coolant temperature has exceeded the trip point and the delay time has expired.     The code is logged.    

Probable Causes

  • Low coolant level and/or coolant leakage

  • Water temperature regulator and/or pressure relief valve

  • Radiator

  • Engine cooling fan (if equipped)

  • Coolant pump

  • Coolant temperature sensor

Recommended Actions

Coolant

  1. Inspect the coolant level. If necessary, add coolant.

  1. Check the mixture of antifreeze and water. Refer to Operation and Maintenance Manual.

  1. Check the cooling system for leaks. Repair any leaks immediately.

  1. Check for air in the cooling system. Refer to Systems Operation/Testing and Adjusting for the correct procedure.

Water Temperature Regulator and/or Pressure Relief Valve

  1. Pressure test the cooling system. Refer to Systems Operation/Testing and Adjusting for the correct procedure.

  1. Check that the seating surfaces of the pressure relief valve and the radiator cap are clean and undamaged.

  1. Check operation of the pressure relief valve and/or the water temperature regulator. If necessary, clean the components and/or replace the components.

Radiator

  1. Check the radiator fins for dirt, debris, and/or damage. Remove any dirt and/or debris and straighten any bent fins. Check for collapsed hoses and/or other restrictions.

  1. Check the radiator for internal blockage. Refer to Systems Operation/Testing and Adjusting for more information.

Faulty Engine Cooling Fan (if equipped)

  1. If the fan is belt driven, check for loose drive belts. A loose fan drive belt will cause a reduction in the air flow across the radiator. Check the fan drive belt for proper belt tension. Adjust the tension of the fan drive belt, if necessary. Refer to Operation and Maintenance Manual.

  1. Check the fan clutch, if equipped. A fan clutch or a hydraulic driven fan that is not turning at the correct speed can cause improper air speed across the radiator core. The lack of proper air flow across the radiator core can cause the coolant not to cool to the proper temperature differential.

Coolant Pump

  1. Inspect the impeller of the coolant pump for damage and/or erosion.

  1. Make sure that the drive gear is not loose on the drive shaft of the coolant pump.

  1. If necessary, replace the coolant pump. Refer to Disassembly and Assembly for the correct procedure.

Check the Coolant Temperature Sensor and/or the Circuit

Check the reading of the coolant temperature on Cat ET. The temperature should rise steadily as the engine is warmed. Ensure that the temperature is reasonable.

If the reading on Cat ET for the coolant temperature is not reasonable, troubleshoot the circuit and the coolant temperature sensor. Refer to Troubleshooting, "Sensor Signal (Analog, Passive) - Test".

Information System:

CB34, CB34XW and CC34 Utility Compactors Fuel System Water Separator Element - Replace
CB34, CB34XW and CC34 Utility Compactors Plate Locations and Film Locations
CB34, CB34XW and CC34 Utility Compactors Capacities (Refill)
CB34, CB34XW and CC34 Utility Compactors Sound Information and Vibration Information
CB22, CB24, CB32 and CC24 Utility Compactors Capacities (Refill)
140M and 150 Motor Grader Blade Lift Cylinder - Remove and Install
140M and 150 Motor Grader Wheel Lean Bar - Remove and Install
AccuGrade GPS (CD700) Design Surface Type
AccuGrade GPS (CD700) Plan View
AccuGrade GPS (CD700) Sloping Surface Design
AccuGrade GPS (CD700) Cross Section View
AccuGrade GPS (CD700) Text View
Installation of the Power Shift Solenoid{5264, 5479}
140M and 150 Motor Grader Window Wiper and Wiper Motor (Door) - Remove and Install - Side
CP54 and CS54 Vibratory Soil Compactors Machine Systems System Pressure - Release
C32 Engine for D11T Track-Type Tractors Fuel Filter Is Restricted
C32 Engine for D11T Track-Type Tractors Fuel Temperature Is High
C27 and C32 Engines for Caterpillar Built Machines Exhaust Temperature Is High
C32 Engine for D11T Track-Type Tractors Inlet Air Temperature Is High
CP56, CS56, CP64, CS64, CP74 and CS74 Vibratory Soil Compactors Machine Systems Vibratory Frequency - Test and Adjust - Fixed
CP56, CS56, CP64, CS64, CP74 and CS74 Vibratory Soil Compactors Machine Systems Magnetic Sensor (Vibratory) - Test and Adjust
CP54 and CS54 Vibratory Soil Compactors Machine Systems Hydraulic Oil Contamination - Test
140M and 150 Motor Grader Power Train Gear Pump (Transmission Charging and Scavenge) - Remove
140M and 150 Motor Grader Power Train Gear Pump (Transmission Charging and Scavenge) - Install