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).
|
|
|
• |
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
|
|
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
|
|
• |
Poor coolant quality / Maintenance check
|
|
• |
Impeller separation from the shaft
|
|
• |
Replace the water pump.
|
|
Other information:
This indicator light illuminates for up to 30 seconds:
• When the vehicle detects the appropriate smart key with immobilizer in your
vehicle while the Engine Start/Stop Button is ACC or ON.
- At this time, you can start the engine.
- The indicator light goes off after starting the engine.
...
Description and operation
Description
•
The Variable Charge Motion Actuator (VCMA) is installed on the inlet
of the intake manifold.
•
It consists of a DC motor which actuates the VCM valve and a position
sensor which detects the pos ...