What does high exhaust system temperature mean?
What does high exhaust system temperature mean?
The High Exhaust System Temperature (HEST) Lamp illuminates to indicate that high exhaust temperatures may exist due to aftertreatment regeneration. When this lamp is illuminated, ensure that the exhaust pipe outlet is not directed at any surface or material that will melt, burn, or explode.
How do I know when regen is done?
Monitor the Exhaust temperature and RPM. When the idle comes back down it means that the regen has finished. If the regen starts and stops then you may have a problem that prevents the regen from taking place.
When to use fault code on C7 engine?
A fault code will not be logged when the system calculates a high exhaust temperature condition, but will activate a de-rate to the engine in order to protect the engine system. This is normal under most circumstances and no additional troubleshooting is necessary.
What happens when exhaust temperature is too high?
If a high exhaust temperature occurs, the ECM derates the engine in order to reduce the calculated exhaust temperature. The engine is derated only to a level that allows the calculated exhaust temperature to return to an acceptable level.
What kind of engine is a Caterpillar C27?
General Engine Configuration V-12, 4-Stroke-Cycle Diesel V-12, 4-Stro Aspiration Turbocharged Aftercooled (TA) Turbocharg Combustion System Direct Injection Direct Injection Rotation from Flywheel End Counterclockwise Counterclockwise Aftertreatment – –
How to troubleshoot a C27 generator set engine?
J2/P2 connectors for the Electronic Control Module If necessary, Page 42 42 RENR9348-01 Troubleshooting Section 5. Check fuel quality. Cold weather adversely Throttle Signal affects the characteristics of the fuel. Refer to the Operation and Maintenance Manual.
A fault code will not be logged when the system calculates a high exhaust temperature condition, but will activate a de-rate to the engine in order to protect the engine system. This is normal under most circumstances and no additional troubleshooting is necessary.
What’s the diagnostic code for exhaust gas too high?
P2428 is a diagnostic trouble code (DTC) for “Exhaust Gas Temperature Too High Bank 1”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic.
What is the DTC for exhaust gas too high?
P2428 is a diagnostic trouble code (DTC) for “Exhaust Gas Temperature Too High Bank 1”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $99.99.
