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:
Specifications
Direct control VFS[26/B]
▷ Control type : Normal low type
Control Pressure kpa
(kgf/cm², psi)
0 ~ 539.37 (0 ~ 5.5, 0 ~ 78.23)
Current value(mA)
...
Rear Blower Unit Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recover/recycling/charging station.
3.
...
Specifications
▷ Type: Combination of output signals from 4 terminals
▷ Specifications
Power supply (V)
12
Output type
Pin to Pin
▷ Signal ...