Navistar International DT 466 Diagnostic/Troubleshooting Manual page 109

NOTE: Engines are equipped with a fuel pressure
test valve in the form of either a Shrader valve or a
diagnostic coupling.
1. Check fuel pressure and aeration from fuel
pressure test valve located at the front of the
intake manifold.
2. Check fuel pressure and aeration from fuel
pressure test valve located at the front of the
intake manifold.
Figure 114 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
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
4 ENGINE SYMPTOMS DIAGNOSTICS
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
Figure 115 Fuel Pressure Test Adapter
NOTE: If the engine is equipped with a Shrader valve,
use the Fuel Pressure Test Adapter.
Figure 116 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.
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