Observable Diagnostics and Tests
DPSG,RG40854,357 –19–06NOV00–2/2
If timing pin does not enter crankshaft timing slot,
crankshaft MUST BE timed to camshaft. See CHECK
AND ADJUST CAMSHAFT-TO-CRANKSHAFT TIMING in
Section 02, Group 050.
04
150
24
DPSG,RG40854,466 –19–07NOV00–1/1
Check Crankshaft Position Sensor Depth
RG10290 –UN–24AUG99
Crankshaft Position Sensor
RG10380 –UN–19OCT99
Using JDG1334 Depth Checking Tool
A—Machined Mounting Surface (Spotface)
B—Crankshaft Position Sensor
C—Pin (In JDG1334 Depth Tool)
D—Sensor Depth Low (Shim Required)
E—Sensor Depth Correct (No Shim Required)
F—Sensor Depth too High (Requires
Investigation)
G—JDG1334 Depth Checking Tool
H—Crankshaft Timing Wheel
NOTE: Crankshaft vibration damper and front seal shown
removed
The ECU monitors the position of the crankshaft and
camshaft to determine piston position and the optimum
time to start and stop injecting fuel. This crank sensor
sends the crank position to the ECU.
1. Disconnect crankshaft position sensor wiring
connector.
2. Remove sensor (B) from timing gear cover.
3. Install JDG1334 Tool (C) in sensor bore in timing gear
cover until the tool is hand tight within the timing gear
cover.
4. Push in on pin (C) until it contacts crankshaft timing
wheel (H).
5. Check position of pin end in relation to end of tool as
shown in (D, E, F)
• If pin’s lower shoulder extends above end of tool (D),
add one R60756 shim to sensor.
• If pin’s lower shoulder is within range of marks (E),
no shim is required on sensor.
• If pin is below end of tool (F), call DTAC for
assistance.
6. Grease O-ring with JDT405 High Temperature Grease
7. Install sensor in timing gear cover and tighten to
specification.
Specification
Crankshaft Position Sensor—
Torque 14 N•m (10 lb-ft).............................................................................
CTM100 (06APR04)
04-150-24
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=372
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