High Fuel Temperature Return
To determine if high fuel temperature return is causing lack of power, perform the following steps:
- Test for high fuel temperature return.
- Analyze the high fuel temperature test results.
- If the return fuel temperature is less than or equal to 60°C (140°F), check for air cleaner restriction; refer to "13.5 Restricted Air Cleaner Element" .
- If the return fuel temperature is greater than 60°C (140°F), resolve the high fuel temperature return condition; refer to "13.4.1 High Fuel Temperature Resolution" .
High Fuel Temperature Resolution
Perform the following steps to resolve high fuel temperature return:
- Remove and replace fuel filter(s), refer to MBE 4000 Service Manual (6SE420), Chapter 2, “Fuel System — Fuel Fliter”.
- Verify high fuel temperature repair; refer to "220.127.116.11 Test the Engine with Resolved High Fuel Temperature" .
Test the Engine with Resolved High Fuel Temperature
Perform the following steps to determine if high fuel temperature repairs have resolved lack of power condition:
To avoid injury before starting and running the engine, ensure the vehicle is parked on a level surface, parking brake is set, and the wheels are blocked.
- Start and run the engine.
- Test drive the vehicle to ensure lack of power has been resolved.
- If lack of power did not occur during the test drive, no further troubleshooting is required. Shut down the engine.
- If lack of occurred during the test drive, shut down the engine. Check for a restricted air cleaner element; refer to "13.5 Restricted Air Cleaner Element" .
|EPA07 MBE 4000 DDEC VI Troubleshooting Guide - 6SE568|
|Generated on 10-13-2008|