TM 9-2320-387-24-l
FUEL SYSTEM
I
KNOWN INFO
I
HARD COLD STARTING
COLD ADVANCE
GLOW PLUG CIRCUIT
FUEL SYSTEM
KNOWN INFO
POWER TO COLD
ADVANCE
SOLENOID
POSSIBLE
PROBLEMS
COLD ADVANCE
CIRCUIT
GLOW PLUG CIRCUIT
FUEL SYSTEM
KNOWN INFO
COLD ADVANCE CIRCUIT
OK
POSSIBLE
PROBLEMS
GLOW PLUG CIRCUIT
FUEL SYSTEM
DIAGNOSTIC FLOWCHART
DISCONNECT WIRE 5698 FROM
COLD ADVANCE SOLENOID. WITH
~ROTARY SWITCH IN RUN POSITION
IS THERE BA-tTERY VOLTAGE AT
WIRE 569B?
1. STUICE-R
TEST 89 (Page 2-508)
2. MULTIMETER
I
REASON FOR QUESTION
‘(
cold advance solenoid.
Need battery voltage to energize
c2
1
r
RECONNECT WIRE 5698. IS
THE COLD ADVANCE CIRCUIT
WORKING?
ST OPTIONS
PERFORM CHECKS AT RIGHT.
REASON FOR QUESTION
Cold advance circuit can cause
hard cold starting.
f c3
1 TEST OPTIONS
RUN GLOW PLUGS CIRCUIT
TESTS. IF NO FAULTS FOUND,
CONTINUE FUEL SYSTEM TESTS.
1. GLOW PLUGS CIRCUIT TESTS
(Page 2-289)
2. FUEL SYSTEM TESTS
REASON FOR TESTS
The glow plug circuit operates
duhng cold start.
2-114
