Coolant | Caterpillar Engines Troubleshooting

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3116 and 3126 HEUI Truck Engines Cooling System Coolant (DEAC) Supplemental Coolant Additive (SCA) – Test/Add

NOTE: Before performing this maintenance, determine the type of coolant that is being used. This maintenance applies ONLY to cooling systems that are filled with conventional heavy duty coolant/antifreeze such ad Caterpillar Diesel Engine Antifreeze/Coolant (DEAC). Test for SCA Or … Continue reading

13. August 2017 by sam
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3116 and 3126 HEUI Truck Engines Cooling System Coolant Extender – Add

NOTE: Before performing this maintenance, determine the type of coolant that is being used. This maintenance applies ONLY to cooling systems that are filled with Caterpillar Extended Life Coolant. Caterpillar Extended Life Coolant (ELC) does not require the frequent Supplemental … Continue reading

13. August 2017 by sam
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3116 and 3126 HEUI Truck Engines Cooling System Coolant (ELC) – Change

NOTE: Before performing this maintenance, determine the type of coolant that is being used. This maintenance applies ONLY to cooling systems that are filled with Caterpillar Extended Life Coolant (ELC). Only clean water is needed in order to clean and … Continue reading

13. August 2017 by sam
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3116 and 3126 HEUI Truck Engines Cooling System Coolant (DEAC) – Change

NOTE: Before performing this maintenance, determine the type of coolant that is being used. This maintenance applies ONLY to cooling systems that are filled with conventional heavy duty coolant/antifreeze such as Caterpillar Diesel Engine Antifreeze/Coolant (DEAC). Clean the cooling system … Continue reading

13. August 2017 by sam
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3116 and 3126 HEUI Truck Engines Coolant Specifications

General Coolant Information Many engine failures are related to the cooling system. Problems such as overheating, water pump leaking, plugged radiators, and cylinder liner pitting can be avoided with proper cooling system maintenance. Cooling system maintenance is as important as … Continue reading

08. August 2017 by sam
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3116 and 3126 Truck Engines Loss Of Coolant

A. Outside Leaks (Go to Step 1) Probable Cause(s): * Leaks In Hoses Or Connections * Leaks In The Radiator And/Or Expansion Tank * Leaks In The Heater * Leaks In The Water Pump * Cylinder Head Gasket Leakage B. … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Fuel In Coolant

Probable Cause: * Defect In Unit Injector Sleeve 1. Defect in unit injector sleeve: Remove unit injectors and inspect sleeves in cylinder head unit injector bores. Look for signs of cavitation erosion or cracks. Cavitation on the inside may be … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Below Normal Coolant Temperature

NOTE: For operation in cold or very cold temperatures, a winterfront cover or radiator shutters are recommended. Probable Cause(s): * Long Idle Periods * Very Light Loads * Water Temperature Regulator * Air Vent Valve * Fan Clutch Engaged 1. … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Above Normal Coolant Temperature

NOTE: The 3100 HEUI Electronic Control System will activate fault codes to warn of engine overheating. Using an electronic service tool check for logged or active diagnostic codes. Refer to 3100 HEUI Diesel Truck Engine Electronic Troubleshooting SENR6566, Event Codes … Continue reading

25. July 2017 by sam
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3116 and 3126 Truck Engines Problem Coolant In Lubrication Oil

Probable Cause(s): * Failure Of The Oil Cooler Core * Failure Of Cylinder Head Gasket * Failure Of Seal Between Cylinder Head And Sleeve In Unit Injector Bore * Crack Or Defect In Cylinder Head * Crack Or Defect In … Continue reading

25. July 2017 by sam
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