TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Air Intake Manifold Heater (010-072)
Section 10 - Air Intake System - Group 10
Page 10-63
If voltage is present, check the pull-in coil of the solenoids.
Check for voltage at the pull-in coil of solenoid.
1. If voltage at pull-in coil, replace electronic control mod-
ule.
2. If no voltage present at pull-in, replace solenoid.
Start the engine.
Do not hold the ignition switch in the start position longer
than 10 seconds.
If the engine does not start, turn the ignition switch to the
OFF position.
Return the ignition switch to the ON position; then begin
the normal starting cycle again.
Remove (010-072-002)
WARNING
Always lock and tag out the ignition system before work-
ing on the engine. Disable the preheater electrical sys-
tem to avoid property damage and personal injury from
electrical shock.
Remove the air intake elbow from the cover.
L-1187