TM 9-2350-277-20-1ENGINE CRANKS BUT WON’T START BELOW 40(AIR BOX HEATER ISUSED)—Continued0022 005Y1. 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 switchdepressed.4. Does multimeter read less than 17 volts?YESNO5YN1. Replace air box heater fuel supplysolenoid (WP 0205 00).2. Verify no faults found.6Y1. GO TO B4Y (PAGE 0022 00–6).AY1. 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?YESNOAYN1. Replace air pump to air box heaterhose.2. Verify no faults found.0022 00-4
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