Fuel - Navistar International DT 466 Diagnostic/Troubleshooting Manual

218

5. Fuel

Figure 276
Purpose
To check fuel level and quality for efficient engine
operation
• Ask the operator if the amber WATER IN FUEL
lamp was on during vehicle operation.
• If engine has an optional Engine Fuel Pressure
(EFP) sensor, ask the operator if the amber FUEL
FILTER lamp was on during vehicle operation. If
the lamp was on, change the fuel filter and retest
for poor engine operation.
Tools
• Clear container (approximately 1 liter or 1 quart
US)
• Fuel pressure test adapter
• Pocket screw driver
Procedure
WARNING: To avoid serious personal injury,
possible death or damage to the engine or
vehicle, read all safety instructions in the "Safety
Information" section of this manual.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
6 PERFORMANCE DIAGNOSTICS
possible death or damage to the engine or vehicle
– comply with the following when taking fuel a
sample:
•
•
1. Check fuel level in fuel tank and for odors other
CAUTION: Be sure to place a rag or suitable container
under the fuel pressure test valve when bleeding the
fuel rail. Dispose of fuel in a correct container clearly
marked DIESEL FUEL according to local regulations.
NOTE: Engine fuel can be a threat to the environment.
Never dispose of engine fuel by putting it in the trash,
pouring on the ground, in the sewers, in streams, or
bodies of water.
Figure 277 Shrader valve assembly
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
WARNING: To avoid serious personal injury,
Do not smoke.
Keep away from open flames and sparks.
than diesel fuel – kerosene and gasoline, for
example.
1. Valve
2. Center stem