ARMY TM 9-6115-670-14&P
4-18
5. ENGINE RUNS ERRATICALLY OR MISFIRES – Continued.
STEP 11. Check for blocked or clogged exhaust pipe or muffler.
a. If the exhaust pipe or muffler is blocked or clogged, remove blockage or replace exhaust
pipe or muffler.
b. If the exhaust pipe and muffler are free of obstructions, proceed to step 12.
STEP 12. Check for defective Speed Sensor.
a. If the Speed Sensor is defective, replace Speed Sensor.
b. If the Speed Sensor is not defective, notify next higher level of maintenance.
