TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
19.
ENGINE STARTS BUT DOES NOT STAY RUNNING - CONTINUED.
WARNING
Although KEY SWITCH must be on and battery ground cable connected to test electrical
circuit voltage, turn off KEY SWITCH and disconnect battery ground cable before doing
resistance tests or replacing parts. This will keep you from getting shocked and prevent
damage to parts and equipment.
NOTE
Scrape painted surfaces to bare metal before connecting test leads to ensure correct
multimeter readings.
When performing steps 2 thru 6, it is important to observe multimeter reading the instant
that engine begins to shut down.
Step 2.
Using multimeter set to 20 vdc scale, connect red test lead to C terminal (1) on water temperature switch
(2) and black test lead to ground. Start engine (TM 5-3805-254-10). Check for 11 to 13 vdc on
multimeter. Disconnect test leads.
a.
If multimeter does not read 11 to 13 vdc, go to step 7.
b.
If multimeter reads 11 to 13 vdc, go to step 3.
Step 3.
Using multimeter set to 20 vdc scale, connect red test lead to NC terminal (3) on water temperature switch
(2) and black test lead to ground. Start engine (TM 5-3805-254-10). Check for 11 to 13 vdc on
multimeter. Disconnect test leads.
a.
If multimeter does not read 11 to 13 vdc, replace water temperature switch (2)
(page 2-675).
b.
If multimeter reads 11 to 13 vdc, go to step 4.
Step 4.
Using multimeter set to 20 vdc scale, connect red test lead to C terminal (4) on oil pressure switch (5) and
black test lead to ground. Start engine (TM 5-3805254-10). Check for 11 to 13 vdc on multimeter.
Disconnect test leads.
a.
If multimeter does not read 11 to 13 vdc, go to step 8.
b.
If multimeter reads 11 to 13 vdc, go to step 5.
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