red side

Engine misses under load

Engine Misses Under Load

Possible Cause


Possible Remedy

Improper fuel (gasoline) in tank


Drain tank, flush system, fill with proper fuel

Tank empty or tank vent blocked


Fill tank/bleed system, check tank vent

Air in the fuel system


Bleed fuel system, eliminate air leaks

Fuel filter blocked


Replace fuel filter

Injection lines blocked or restricted


Drill to nominal I.D. or replace

Fuel-supply lines blocked-resticted


Test all fuel supply lines - flush or replace

Paraffin deposit in fuel filter


Replace filter, use Diesel Fuel no. 1

Pump-to-engine timing incorrect


Readjust timing

Injection nozzle defective


Replace or repair

Overflow fitting interchanged with inlet fitting


Install fittings in their proper positions

Fuel injection pump defective or cannot be adjusted


Remove pump and service


Contact Us