Exhaust System Contains Coolant
Use the following procedure to troubleshoot a problem with coolant in the exhaust system.
- Cylinder head gasket leak
- Cylinder head leak
Note: The procedures have been listed in order of probability. Complete the procedures in order.
Show/hide table
| Troubleshooting Test Steps | Values | Results |
|---|---|---|
1. Cylinder head gasket leak A. Check the cylinder head gasket for leaks. Refer to the Systems Operation/Testing and Adjusting for the proper procedure for checking the cylinder head. |
Cylinder Head Gasket |
Result : The cylinder head gasket is not leaking. Proceed to Test Step 2. Result : The cylinder head gasket is leaking. Repair: Replace the cylinder head gasket. Refer to the Disassembly and Assembly manual. If the problem is not resolved, proceed to Test Step 2. |
2. Cylinder head A. Check for cracks in the cylinder head. Perform a leak test on the cylinder head. Refer to the Systems Operation/Testing and Adjusting for the proper procedure for checking the cylinder head. |
Cylinder Head |
Result : A crack is found in the cylinder head. Repair: Repair the cylinder head and/or replace the cylinder head. Refer to the Disassembly and Assembly manual. Verify that the repair eliminated the problem. |
If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).
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