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Engine Mechanical (4HK1-TC) 6A-9 Trouble Shooting Engine does not turn over Engine turns over but does not start Condition Possible Cause Correction Starter motor does not rotate Dead or weak battery Charge or Incomplete circuit Connect Starter relay Replace starter relay Starter motor brushes stuck, worn, Replace brushes Starter motor internal damage Repair motor Starter motor not meshed with Ring gear abrasion Replace ring gear Pinion gear abrasion Replace pinion gear Magnetic switch (starter motor) not Adjust Starter motor pinion meshed with Dead or weak battery Charge battery Insufficient contact pressure Adjust pressure Armature (starter motor) stuck Repair armature Engine internal damage (Seizure) Repair engine Condition Possible Cause Correction Fuel is not delivered to fuel supply Air in fuel system Bleed air from fuel system Air entering fuel pipe Replace pipe and bleed air from Empty fuel tank Replenish fuel Clogged strainer (fuel suction) Clean or replace strainer Clogged fuel pipe Clean or replace pipe Use of wrong fuel for prevailing Drain existing fuel and replace with Clogged fuel filter Replace filter Fuel is delivered to fuel supply Loose injection pipe connections Tighten connections Loose or broken electrical Tighten and/or replace connectors Bad rotational sensor Replace sensor Engine control system malfunction System diagnosis Insufficient or unstable fuel delivery Air in fuel system Bleed air from fuel system Feed pump malfunction Repair pump Loose or broken electrical Tighten and/or replace connectors Clogged fuel filter Replace filter Engine control system malfunction System diagnosis |