Symptoms
|
Possible Causes
|
Remedy
|
Coolant leakage
|
| •
|
From the bleed hole of the water pump
|
|
Visually check
|
| •
|
Check leaks after about ten-minute warming
up.
|
|
| •
|
If coolant still leaks, replace a water pump.
|
|
| •
|
If leakage stops, reuse the water pump (Do
not replace the pump with a new one).
|
|
| •
|
From gaskets or bolts
|
|
| •
|
Check the tightening of the water pump mounting
bolts.
|
|
| •
|
Retighten the mounting bolts.
|
|
| •
|
Check damage of gaskets or inflow of dust.
|
|
| •
|
Replace the gasket and clean dust off.
|
|
| •
|
From outer surface of water pump
|
|
| •
|
Check the material or any cracks of the water
pump.
|
|
| •
|
Poor material. If any crack found, replace
the water pump.
|
|
Noise
|
| •
|
From mechanical seals
|
| •
|
Impeller interference
|
|
Inspection with a stethoscope
|
| •
|
After starting the engine, check noise with
a stethoscope.
|
|
| •
|
If there is no noise, reuse the water pump
(do not replace it).
|
|
| •
|
If there is any noise from the water pump,
remove the drive belt and recheck.
|
|
Inspection after removing a drive belt
|
| •
|
After removing a water pump and a drive belt,
check noise again.
|
|
| •
|
If there is noise, reuse the water pump.
Check other drive line parts.
|
|
| •
|
If there is no noise, replace the water pump
with a new one.
|
|
Inspection after removing a water pump
|
| •
|
After removing a water pump and a drive belt,
check noise again.
|
|
| •
|
If there is any interference between them,
replace the water pump with a new one.
|
|
Overheating
|
|
Loosened impeller
|
| •
|
Corrosion of the impeller wing
|
|
| •
|
Check engine coolant.
|
| •
|
Poor coolant quality / Maintenance check
|
|
| •
|
Impeller seperation from the shaft
|
|
| •
|
Replace the water pump.
|
|
See also:
Front Impact Sensor (FIS). Description and Operation
Description
The front impact sensor (FIS) is installed in the Front End Module (FEM).
They are remote sensors that detect acceleration due to a collision at its mounting
location. The primar ...
Troubleshooting
Troubleshooting
Problem Symptoms Table
Use the table below to help you find the cause of the problem. The numbers
indicate the priority of the like cause of the problem. Check each ...
Power Window Switch. Schematic Diagrams
Circuit Diagram
Driver Power Window Switch
Passenger Power Window Switch
Rear Power Window Switch
...
Hyundai Sonata: Water pump. Troubleshooting
Water pump. Repair procedures
Thermostat. Repair procedures