TM-9-2320-387-24-1
TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 1
DECEMBER 1997
CHANGE 1
TM-9-2320-387-24-1 - Page 180 of 1205
TM
9-2320-387-24-l
FUEL SYSTEM
RUNNING ROUGH
POSSIBLE
PROBLEMS
1
GLOW PLUGS
COLD ADVANCE
FUEL LINES
FUEL PUMP
FUEL FILTER
INJECTION
PUMP
INJECTORS
KNOWN INFO
GLOW PLUGS OK
POSSIBLE
PROBLEMS
COLD ADVANCE
FUEL UNES
FUEL PUMP
FUEL FILTER
INJECTlON
PUMP
INJECTORS
r
RUN THE GLOW PLUG TESTS.
RETURN HERE IF NO FAULTS
FOUND.
DIAGNOSTIC FLOWCHART
ST OPTfONS
RUN GLOW PLUGS CIRCUIT
TESTS (Page 2-289).
IF YOU ARE
SURE THAT THE PROBLEM
EXISTS WHEN THE ENGINE IS
WARM, YOU CAN SKIP THIS
QUESTlON.
REASON
FOR QUESTION
Glow plug failures can cause
rough running when cold.
CHECK COLD ADVANCE CIRCUIT.
GO TO STEP C2, PAGE 2-114.
RETURN HERE IF NO FAULTS
FOUND.
COLD ADVANCE
TESTS
(Page 2-114)
TEST OPTIONS
REASON
FOR QUESTlON
A faulty cold advance circuit can
cause rough running.
2-120
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