TM 9-2350-277-20-1
ENGINE CRANKS BUT WON’T START BELOW 40
(AIR BOX HEATER IS
USED)—Continued
0022 00
5Y
1. Install fuel supply line to solenoid at restrictor block
(WP 0206 00).
2. Remove air box heater harness plug (1) from solenoid (2).
3. Measure voltage between plug (1) pins with air box heater switch
depressed.
4. Does multimeter read less than 17 volts?
YES
NO
5YN
1. Replace air box heater fuel supply
solenoid (WP 0205 00).
2. Verify no faults found.
6Y
1. GO TO B4Y (PAGE 0022 00–6).
AY
1. Turn AIRBOX HEATER and MASTER SWITCH to OFF.
2. Remove screw (1), washer (2), and bracket (3).
3. Remove air hose (4) from air pump elbow (5).
4. Is hose free from restriction and damage?
YES
NO
AYN
1. Replace air pump to air box heater
hose.
2. Verify no faults found.
0022 00-4
