Mitsubishi Outlander GS45X. Manual - part 468
ENGINE DIAGNOSIS
TSB Revision
ENGINE MECHANICAL <2.4L ENGINE>
11A-3
ENGINE DIAGNOSIS
M1111000700400
SYMPTOMS
PROBABLE CAUSE
REMEDY
Compression is too
low
Blown cylinder head gasket
Replace the gasket.
Worn or damaged piston rings
Replace the rings.
Worn piston or cylinder
Repair or replace the piston and/or the
cylinder block.
Worn or damaged valve seat
Repair or replace the valve and/or the
seat ring
Drop in engine oil
pressure
Engine oil level is too low
Check the engine oil level.
Malfunction of engine oil pressure switch
Replace the engine oil pressure switch.
Clogged oil filter
Install a new filter.
Worn oil pump gears or cover
Replace the gears and/or the cover.
Thin or diluted engine oil
Change the engine oil to the correct
viscosity.
Stuck (opened) oil relief valve
Repair the relief valve.
Excessive bearing clearance
Replace the bearings.
Engine oil pressure
too high
Stuck (closed) oil relief valve
Repair the relief valve.
Noisy valves
Incorrect valve clearance
Adjust valve clearance
Thin or diluted engine oil (low engine oil
pressure)
Change the engine oil.
Worn or damaged valve stem or valve
guide
Replace the valve and/or the guide.
Connecting rod
noise/main bearing
noise
Insufficient oil supply
Check the engine oil level.
Thin or diluted engine oil
Change the engine oil.
Excessive bearing clearance
Replace the bearings.