C18 Industrial Engine Caterpillar

Use this procedure in order to troubleshoot an engine overspeed or use this procedure if the following event code is active. Refer to Troubleshooting, "Event Codes" for information about event codes and the default trip points for these codes. You must access the monitoring system on Caterpillar Electronic Technician (ET) in order to view the current trip point for this code. For information on the engine monitoring system, refer to Troubleshooting, "Engine Monitoring System".

Table 1

Event Codes
Code	Conditions which Generate this Code	System Response
E362(1) Engine Overspeed	The engine rpm has exceeded the rated rpm by 20% for the delay time.	The code is logged.
E362(2) Engine Overspeed		The Electronic Control Module (ECM) will not power the injectors above the engine high idle speed. If applicable, the ECM will activate the air shutoff solenoids. Power to the ECM must be cycled or the event reset switch must be toggled prior to restarting the engine. The code is logged.
E362(3) Engine Overspeed

Probable Causes

Combustible Intake Air

• Intake air is combustible.

Sudden drop of load

• Sudden drop of load

Recommended Actions

Intake Air is Combustible

Check for hydrocarbons in the surrounding atmosphere. Do not operate the engine in an environment with hydrocarbons in the surrounding atmosphere.

Sudden Drop of Load

Decrease the load on the engine gradually.