SR. NO. COMPLAINT CAUSE REMEDY ENGINE LUBRICATION SYSTEM 4 Engine does not develop oil pressure / Low Engine Oil Pressure 1. Defective instrument cluster 2. Low oil level in sump 3. Oil pump seized Seized • Oil pump relief valve stuck • in open position 1. Main bearing /con rod bearings & journals excessively worn out 2. Bearing shells peeled off 3. Wrong grade of oil used 4. Diesel dilution 5. Faulty oil pressure sensing unit 1. Check DTC and rectify. 2. Top-up 3. Action to be taken: Replace • Repair/Replace the valve and • affected engine parts 4. Replace affected parts. 5. Replace the bearing shell and affected parts, if any 6. Fill in correct grade of oil 7. Rectify 8. Replace faulty sensing unit as needed 5. High Engine Oil Consumption Oil leakage from :- 1. Crankshaft front oil seal 2. Crankshaft rear oil seal 3. Sump to block mating area 4. Oil cooler 5. Oil filter 6. Camshaft head front oil seal 7. Cylinder head cover gasket 8. Oil leak from cylinder head gasket 9. Cylinder head cover warpage j) Oil seal on valve guide Valve guide worn out l) 10. Excessive oil filling Excessive piston ring 11. butt/Lateral clearance Excessive cylinder bore wear 12. (Excessive blow-by) 1. Replace the oil seal 2. Replace the oil seal 3. Tighten sump screws/Replace gasket. 4. Tighten the fastener / Replace oil cooler. 5. Tighten the filter / Replace oil filter 6. Replace the oil seal. 7. Replace the gasket 8. Replace the gasket 9. Replace cylinder head cover Replace the oil seal k) Replace the 10. head l) Fill the oil to correct level m) Replace piston rings n) Repair/replace the engine Diesel Engine Ph-2 (CAFÉ) 11
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