5 HARD START AND NO START DIAGNOSTICS 195
Figure 244 High-pressure oil hose with test
fittings in stalled
1. Air chuck
2. Shut-off valve
3. 13/16-16 NPT fitting
4. High-pressure hose
2. Install 13/16-16 NPT fitting, shut-off valve, and air
chuck fitting to test ho s e.
3. Remove oil level gauge from oil fill tube.
4. Close the shut-off valve.
5. Connect shop air supply line to test hose.
6. Apply 689 kPa (100 psi) of pressure. Slowly open
the shut-off valve.
7. Listen for an air leak in the crankcase through the
oil fill tube.
• A leak should be heard through the IPR valve
when the IPR valve is not energized.
Figure 245 Actuator Breakout Harness to IP
R
8. Connect Actuator B reakout Harness to IPR
. Do
not connect engine harness.
CAUTION: If the engine harness is conn
ected to
the actuator breakout harness, the i
gnition switch
fuse will blow or cause damage to wir
ing harness.
Figure 246 B+ on power distribution terminal
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
©August 2008 Navistar, Inc.
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