STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
D. CHART -2 - ENGINE CRANKS BUT WILL NOT START (Cont'd)
C 2-8
Check SRS/TRS Gap
(non Series 60)
(Note: You'll probably have to
Incorrect gap.
Loosen the screw at the top of
remove the ECM to perform this
the TRS/SRS mounting bracket
check for 92's.
(don't touch the two screws that
Bar the engine until the TRS is
go into the block front end
over a TRS "tooth" of the pulse
plate-they will affect engine
wheel.
timing). Adjust the TRS/SRS until
Tap the front of the camshaft
the gap setting is correct. Tighten
rearward with a soft hammer (to
screw. (If problems returns, pulse
remove camshaft end play).
wheel may be loose or bad.)
Using a feeler gauge check
Then go to C2-30.
gap (nominal gap is
Gap setting
Go to C2-10.
0.020" or 0.5mm).
is correct.
C 2-9
Check SRS/TRS
Mounting Bracket
(Series 60)
Inspect SRS/TRS Mounting
Loose.
Tighten bolt (or replace if
necessary). Then go to C2-30.
Sensor is secure.
Go to C2-10.
C 2-10
Check Pulse Wheel
Inspect DDEC puise wheel for:
Pulse wheel OK.
Go to C2-11.
-Loose wheel.
-Chipped or missing teeth.
Problem found.
Repair or replace as
necessary-Go to C2-30.
C 2-11
Check ECM
Connectors
Turn Ignition off.
Terminal and
Replace ECM. Then go to C2-30.
Disconnect all connectors at the
connectors are okay.
ECM.
Check terminal at all ECM
Problem found
Repair terminals/connectors.
connectors (both the ECM and
Then go to C2-30.
harness side) for damage; bent,
corroded and unseated pins or
sockets.
Change 3 3-345.67
