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general information - Martin Nez

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10-6 SERVICING INFORMATIONENGINEComplaint Symptom and possible causes RemedyEngine will not startor is hard to start.Compression too low1. Valve clearance out of adjustment2. Worn valve guides or poor seating of valves3. Mistiming valves4. Excessively worn piston rings5. Worn-down cylinder bores6. Too slowly starter motor cranks7. Poor seating of spark plugsAdjust.Repair or replace.Adjust.Replace.Replace.See electrical section.Retighten.Plug not sparking1. Fouled spark plugs2. Wet spark plugs3. Defective ignition coil4. Defective CKP sensor5. Defective ECM6. Open-circuited wiring connectionsNo fuel reaching the intake manifold1. Clogged fuel filter or fuel hose2. Defective fuel pump3. Defective fuel pressure regulator4. Defective fuel injector5. Defective fuel pump relay6. Defective ECM7. Open-circuited wiring connectionsIncorrect fuel/air mixture1. TP sensor out of adjustment2. Defective fuel pump3. Defective fuel pressure regulator4. Defective TP sensor5. Defective CKP sensor6. Defective IAP sensor7. Defective ECM8. Defective ECT sensor9. Defective IAT sensor10. Defective AP sensorClean.Clean and dry.Replace.Replace.Replace.Repair or replace.Clean or replace.Replace.Replace.Replace.Replace.Replace.Check and repair.Adjust.Replace.Replace.Replace.Replace.Replace.Replace.Replace.Replace.Replace.

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