Navistar International DT 466 Diagnostic/Troubleshooting Manual page 264

260
Figure 341 Fuel Pressure Gauge
1. Quick disconnect check valve
2. Fuel test line
3. Fuel Pressure Gauge
4. Inline shut-off valve
5. Clear test line
Figure 342 Fuel Pressure Test Adapter
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
6 PERFORMANCE DIAGNOSTICS
NOTE: If the engine is equipped with a Shrader valve,
use the Fuel Pressure Test Adapter.
Figure 343 Fuel/Oil Pressure Test Coupler
NOTE: If the engine is equipped with a diagnostic
coupling, adapt the Fuel/Oil Pressure Test Coupler to
the Fuel Pressure Gauge.
3. Connect the Fuel Pressure Gauge and shut-off
4. Mount the Fuel Pressure Gauge where it can be
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
valve to the intake manifold fuel pressure test port.
NOTE: Breaking any fuel system joint will induce
air into the fuel system. The air should pass in a
short period of time.
seen from the drivers seat.
WARNING: To avoid serious personal
injury, possible death or damage to the engine
or vehicle – comply with the following:
When routing test line, do not crimp the line,
run the line too close to moving parts, or let
the line touch hot engine surfaces. Secure
the gauge and test line in the cab so as not
to obstruct the operator.