Chrysler Conquest 1988 Service Manual page 713

ENGINE
- Troubleshootina
9-13
TROUBLESHOOTING
Symptom
Compression too low
Oil pressure drop
Oil pressure too high
Noisy valves
Connecting rod
noise/main
bearing noise
Timing chain noise
Excessive-engine
rolling and vibration
Probable cause Remedy
Cylinder head gasket blown Replace gasket
Piston ring worn or damaged Replace rings
Piston or cylinder worn Repair or replace piston and/or
cylinder block
Valve seat worn or damaged Repair or replace valve and/or seat
ring
Engine oil level too low Check engine oil level
Oil pressure switch faulty Replace oil pressure switch
Oil filter clogged Replace oil filter
Oil pump gears or body worn Replace gears and/or body
Oil relief valve stuck (opened)
Excessive bearing clearance
Repair relief valve
Replace bearings
Oil relief valve stuck (closed) Repair relief valve
Incorrect auto-lash adjuster
Valve stem or valve guide worn or damage
Replace auto-lash adjuster
Replace valve and/or guide
Insufficient oil supply
Check engine oil level
Low oil pressure
Refer to "Oil pressure drop"
Excessive bearing clearance
Incorrect chain tension
Replace bearings
Adjust chain tension
Loose engine support bracket
Retighten bracket
Broken engine mounting front insulator
Broken engine mounting rear insulator
Replace insulator
Replace insulator