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Starting Problem

Starting Problem

Possible Cause


Possible Remedy

Air in fuel system


Bleed fuel system, eliminate air leaks

Tank empty or tank vent blocked


Fill tank/bleed system, check tank vent

Shut/off start device defective


Repair or replace

Fuel filter blocked


Replace fuel filter

Injection lines blocked/restricted


Drill to nominal I.D. or replace

Fuel injection pump defective or cannot be adjusted


Remove pump and service

Fuel-supply lines blocked-restricted


Test all fuel supply lines-flush or replace

Loose connections, injection lines leak or broken


TIghten the connection, eliminate the leak

Paraffin deposit in fuel filter


Replace filter, use winter fuel

Pump-to-engine timing incorrect


Readjust timing

Injection nozzle defective


Repair or replace

Pre-dash heating system defective


Test the glow plugs, replace as necessary

Injection sequence does not correspond to firing order


Install fuel injection lines in the correct order

Low or uneven engine compression


Repair as necessary


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