Coolant Level Is Low
Use this procedure to troubleshoot low coolant level or use this procedure if one of the codes in Table 1 is active.
Show/hide table
Diagnostic Trouble Codes | |
---|---|
CDL Code and Description | Comments |
E2143 (1)
Low Engine Coolant Level - least severe (1) |
The engine has been running for 60 seconds. The engine coolant level has fallen below the coolant level sensor for the specified delay time.
The code is logged. |
E2143 (2)
Low Engine Coolant Level - moderate severity (2) |
The engine has been running for 60 seconds. The engine coolant level has fallen below the coolant level sensor for the specified delay time.
Engine power is derated. The code is logged. |
E2143 (3)
Low Engine Coolant Level - most severe (3) |
The engine has been running for 60 seconds. The engine coolant level has fallen below the coolant level sensor for the specified delay time.
Engine power is derated. The code is logged. |
- Low coolant level
- Coolant leakage
- Air in cooling system
- Incorrect anti-freeze mixture
- Coolant level sensor
Show/hide table
Troubleshooting Test Steps | Values | Results |
---|---|---|
1. Check for Low Coolant Level. A. Inspect the coolant level. |
Coolant Level |
Result: The engine coolant level is OK. Proceed to Test Step 5. Result : The engine coolant level is NOT OK. Repair : Fill the coolant tank to the proper level if necessary. Proceed to Test Step 2. |
2. Check the Cooling System for Leaks. |
Cooling system |
Result : The cooling system is OK. Proceed to Test Step 3. Result: The cooling system is NOT OK. Repair: Refer to Systems Operation/Testing and Adjusting, "Cooling System - Test" for the correct procedure. Repair any leaks immediately. If the problem is not resolved, proceed to Test Step 3. |
3. Check for Air in the Cooling System. |
Cooling system |
Result : The cooling system is OK. Proceed to Test Step 4. Result : There is air in the cooling system. Repair : Refer to Systems Operation/Testing and Adjusting, "Testing the Cooling System" for the correct procedure. If the problem is not resolved, proceed to Test Step 4. |
4. Check for the Correct Mixture of Antifreeze and Water. |
Antifreeze mixture |
Result : The antifreeze and water mixture is OK. Proceed to Test Step 5. Result : The antifreeze and water mixture is NOT OK. Repair : Refer to the Operation and Maintenance Manual. If the problem is not resolved, proceed to Test Step 5. |
5. Check for a Faulty Coolant Level Sensor A. If an electrical problem with the coolant level sensor is suspected, refer to Troubleshooting, "Coolant Level - Test" for information that is related to troubleshooting an electrical problem with the coolant level sensor. |
Coolant Level Sensor |
Result: The coolant level sensor is not operating properly. Repair: Replace the coolant level sensor. |
If the procedure did not correct the issue, contact your Technical Communicator (TC). For further assistance, the TC can confer with the Dealer Solutions Network (DSN).
Caterpillar Information System:
Procedure to Update the Water Lines on Certain 797 and 797B Off-Highway Trucks {1380} Procedure to Update the Water Lines on Certain 797 and 797B Off-Highway Trucks {1380}
563D and 573D Wheel Feller Buncher Power Train Parking Brake
563D and 573D Wheel Feller Buncher Power Train Transmission Gearbox
814K, 816K, 826K 836K Landfill Compactors, 815K, 825K, Soil Compactors, 824K, 834K, 844K, 854K Wheel Dozers and 986K, 988K, 990K, 992K,994K Wheel Loaders Information Display System Schematic
814K, 816K, 826K 836K Landfill Compactors, 815K, 825K, Soil Compactors, 824K, 834K, 844K, 854K Wheel Dozers and 986K, 988K, 990K, 992K,994K Wheel Loaders Information Display Module - Flash Program
814K, 816K, 826K 836K Landfill Compactors, 815K, 825K, Soil Compactors, 824K, 834K, 844K, 854K Wheel Dozers and 986K, 988K, 990K, 992K,994K Wheel Loaders Information Display Pop-Up Messages
814K, 816K, 826K 836K Landfill Compactors, 815K, 825K, Soil Compactors, 824K, 834K, 844K, 854K Wheel Dozers and 986K, 988K, 990K, 992K,994K Wheel Loaders Information Display Operator Profile Menu
Procedure to Update the Operator Walkway Mounting is Now Available on Certain 793D Off-Highway Trucks {0679, 7253, 7255, 7256, 7277, 7319} Procedure to Update the Operator Walkway Mounting is Now Available on Certain 793D Off-Highway Trucks {0679, 7253, 7255, 7256, 7277, 7319}
814K, 816K, 826K 836K Landfill Compactors, 815K, 825K, Soil Compactors, 824K, 834K, 844K, 854K Wheel Dozers and 986K, 988K, 990K, 992K,994K Wheel Loaders Information Display Service Test Menu
814K, 816K, 826K 836K Landfill Compactors, 815K, 825K, Soil Compactors, 824K, 834K, 844K, 854K Wheel Dozers and 986K, 988K, 990K, 992K,994K Wheel Loaders Information Display Totals Menu
814K, 816K, 826K 836K Landfill Compactors, 815K, 825K, Soil Compactors, 824K, 834K, 844K, 854K Wheel Dozers and 986K, 988K, 990K, 992K,994K Wheel Loaders Information Display Tire Pressure Parameters
814K, 816K, 826K 836K Landfill Compactors, 815K, 825K, Soil Compactors, 824K, 834K, 844K, 854K Wheel Dozers and 986K, 988K, 990K, 992K,994K Wheel Loaders Information Display Parameter Menu Via Type
563D and 573D Wheel Feller Buncher Power Train Differential
563D and 573D Wheel Feller Buncher Power Train Axle Housing
New Software Is Now Available for Cat® Product Link {7606, 7610, 7620} New Software Is Now Available for Cat® Product Link {7606, 7610, 7620}
AP355F Asphalt Paver Machine Systems Footshaft - Remove and Install
563D and 573D Wheel Feller Buncher Power Train Oil Filter (Power Train Charge Pump)
14M Series 3 Motor Grader Engine Starting
730 & 735 Articulated Truck Engine Starting
14M Series 3 Motor Grader Stopping the Engine
730 & 735 Articulated Truck Parking
563D and 573D Wheel Feller Buncher Power Train Drive Shaft (Machine)
A New Bolt Is Now Used in the Heel Group on Certain 2384C, 2484C, 559C, and 579C Knuckleboom Loaders {6501, 6502, 6520} A New Bolt Is Now Used in the Heel Group on Certain 2384C, 2484C, 559C, and 579C Knuckleboom Loaders {6501, 6502, 6520}
563D and 573D Wheel Feller Buncher Power Train Transmission Mounting