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1.2L REVOTRON ENGINE
14
Worn
I
damaged piston
ring(s) or cylinder bore,
permitting oil blow-by
Perform engine compression test
and/or leak-down test.
Head gasket leaking oil into
combustion chamber
Inspect engine coolant for oil and
perform engine compression test.
Engine emits black smoke from
tail pipe.
Excess carbon deposits in
combustion chamber
Remove carbon deposits in
combustion chamber using a
commercially available cleaner
Excess
fuel
entering
cylinder(s)
Check lambda/O2 and other
engine
sensors
for
proper
operation.
Test fuel injectors for proper
operation or leakage.
Check the fuel and emissions
system for proper operation.
Exhaust rubber hanger wear /
crack.
Ageing of rubber hanger
Check the Exhaust rubber hangers
& replaced if found crack / damage
or wear.
6. Cooling System
Condition
Possible Cause
Remedy
Overheating
Low coolant level/ Cooling
system leaking
Check coolant level in reservoir
and inspect system for leaks. Add
coolant as necessary.
Defective thermostat
Remove thermostat and check for
proper opening at specified
temperature.
Defective water pump
Inspect and replace water pump as
necessary.
Defective
temperature
sending unit
Check
coolant
temperature
sending
unit
Replace
as
necessary.
Engine
cooling
fan
malfunctioning
Test operation of engine cooling
fan. Repair or replace as
necessary.
Engine overloading
Make sure vehicle brakes are not
dragging.
Vehicle overloaded. Make sure
vehicle does not exceed weight
limit with cargo.
Engine lean condition
Verify proper operation of fuel
system
components.
Repair
system or replace components as
necessary.
Head gasket leaking
Test engine compression. Replace
head gasket as necessary.