To determine if the fuel pump is causing starting difficulty, perform the following steps:
- Insert a piece of wire through the pump flange drain hole, see Figure
"Fuel Pump Flange Drain Hole Location"
Figure 1. Fuel Pump Flange Drain Hole Location
- Crank the engine momentarily and feel for wire vibration.
- If the wire did not vibrate, determine if the drive hub or coupling should be replaced; refer to "4.9.1 Drive Hubs and Coupling Replacement" .
- If the wire did vibrate, check for aerated fuel. Refer to "4.10 Aerated Fuel" .
Drive Hubs and Coupling Replacement
Perform the following steps for drive hub or coupling replacement:
- Replace the drive hub or coupling; refer to the appropriate service manual, fuel system chapter.
- Test the engine to determine if starting has been improved; refer to "22.214.171.124 Engine Test with Replaced Drive Hubs or Replaced Coupling" .
Engine Test with Replaced Drive Hubs or Replaced Coupling
To determine if replaced drive hubs or coupling resolved starting difficulty, attempt to start and run the engine.
- If the engine starts and runs, no further troubleshooting is required. Shut down the engine.
- If the engine fails to start and run, check for aerated fuel; refer to "4.10 Aerated Fuel" .
|EPA07 Series 60 DDEC VI Troubleshooting Guide - 6SE567|
|Generated on 10-13-2008|