Troubleshooting - Kia Cerato 2009 Service Manual

2009 > D 1.6 TCI-U >

TROUBLESHOOTING

Symptom
Engine misfire with
Loose or improperly installed engine flywheel.
abnormal internal
lower engine noises.
Worn piston rings.
(Oil consumption may or may not cause the
engine to misfire.)
Worn crankshaft thrust bearings.
Engine misfire with Stuck valves.
abnormal valve train (Carbon buildup on the valve stem can cause
noise. the valve not to close properly.)
Excessive worn or mis-aligned timing chain.
Worn camshaft lobes.
Engine misfire with
•• Faulty cylinder head gasket and/or cracking
coolant consumption
or other damage to the cylinder head and
engine block cooling system.
•• Coolant consumption may or may not cause
the engine to overheat.
Engine misfire with Worn valves, valve guides and/or valve stem oil
excessive oil seals.
consumption
Worn piston rings.
(Oil consumption may or may not cause the
engine to misfire)
Engine noise on Incorrect oil viscosity.
start-up, but only
lasting a few
Worn crankshaft thrust bearing.
seconds.
Upper engine noise, Low oil pressure.
regardless of engine
Broken valve spring.
speed.
Worn or dirty valve lifters.
Stretched or broken timing chain and/or
damaged sprocket teeth.
Worn timing chain tensioner, if applicable.
Worn camshaft lobes.
Worn valve guides or valve stems.
Suspect area Remedy
Repair or replace the flywheel as
required.
Inspect the cylinder for a loss of
compression.
Repair or replace as required.
Replace the crankshaft and bearings
as required.
Repair or replace as required.
Replace the timing chain and
sprocket as required.
Replace the camshaft and valve
lifters.
•• Inspect the cylinder head and
engine block for damage to the
coolant passages and/or a faulty
head gasket.
•• Repair or replace as required.
Repair or replace as required.
Inspect the cylinder for a loss of
compression
Repair or replace as required.
Drain the oil.
Refill with the correct viscosity oil.
Inspect the thrust bearing and
crankshaft.
Repair or replace as required.
Repair or replace as required.
Replace the valve spring.
Replace the valve lifters.
Replace the timing chain and
sprockets.
Replace the timing chain tensioner
as required.
Inspect the camshaft lobes.
Replace the camshaft and valve
lifters as required.
Inspect the valves and valve guides,
then repair as required.