TM 9-2320-272-10
Table 3-1. Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 3.
Check to see if throttle control solenoid is functioning properly (M939A2 series vehicles only).
If solenoid is malfunctioning, tie up with a strap or rope and finish mission. Report to unit maintenance
as soon as possible.
3.
ENGINE CRANKS BUT FAILS TO START AT OUTSIDE TEMPERATURES BELOW +32°F (0°C).
NOTE
Refer to Cold Weather Starting (para. 2-13).
Step 1.
Check to see if fuel gauge indicates empty.
If empty, fill fuel tank(s).
Step 2.
Check to see if emergency engine stop control on instrument panel is pulled out.
Notify unit maintenance to reset fuel cutoff valve (M939/A1 series vehicles only).
Step 3.
Check ether starting system.
Operate ether starting system.
4.
ENGINE STARTS BUT MISFIRES, RUNS ROUGH, OR LACKS POWER.
Step 1.
Check to see if emergency engine stop control on instrument panel is pulled out.
Notify unit maintenance to reset fuel cutoff valve (M939/A1 series vehicles only).
Step 2.
Check for restricted air cleaner.
If restricted, clean air cleaner element (para. 3-8).
Step 3.
Check fuel supply system for water and impurities.
Perform service operation (para. 3-8).
Step 4.
Check for air in fuel system.
Prime fuel system (para. 3-8).
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