TM 5-3800-205-23-1
TROUBLESHOOTING PROCEDURES - CONTINUED
0007 00
Table 6. Engine Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
If problem still exists after
1. Engine Cranks But Fails to Start (Operating
1. Check that engine is primed
engine priming, go to test step 2.
Temperature Above 32F (0C).
by placing fuel pump switch
to ON.
2. Check that fuel shutoff valves
a. Open fuel shutoff valves (TM
are fully OPEN.
5-3800-205-10-1 or TM 5-
3800-205-10-2).
b. If problem still exists, go to
test step 3.
a. Follow corrective actions as
3. Using a multimeter, perform
described in test procedures.
Starter
Ground
Circuit
Voltage Test, Starter Relay
Voltage Test, and Starter
b. If problem still exists, go to
test step 4.
If indications are not as
4. Using a multimeter, check
specified, replace fuel shutoff
fuel shutoff solenoid GND
solenoid (WP 0017 00).
and STOP terminals for an
indication of 10.30 ohms, and
GND and START for 1.55
ohms.
2. Engine Cranks But Fails to Start (Operating
1. Check that fuel shutoff valves
a. Open fuel shutoff valves (TM
Temperature Below 32F (0C).
are fully OPEN.
5-3800-205-10-1 or TM 5-
3800-205-10-2).
b. If problem still exists, go to
test step 2.
CAUTION
DO NOT crank starter motor for more than 30 seconds at a time. After 30 seconds, allow starter motor
to cool for at least two minutes before attempting to start engine again. Excessive heating of starter
motor may result in damage or premature starter failure.
a. If problem still exists, replace
2. While cranking engine, press
ether canister (WP 0022 00),
top of ether start aid switch.
then try to start engine.
Wait approximately two (2)
seconds between injections.
b. If problem still exists, go to
test step 3.
