| TUCSON(LM) >2013 > G 2.0 DOHC > Engine Mechanical System > Cooling System > Water pump>Troubleshooting |

Troubleshooting
Symptoms | Possible Causes | Remedy
Coolant leakage |
• | From the bleed hole of the water pump
| Naked eye observation |
• | 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 bearings
• | 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 |
• | Damaged impeller
• | Loosened impeller
| Loosened impeller |
• | Corrosion of the impeller wing
• | Check engine coolant.
• | Poor coolant quality / Maintenance check
• | Impeller seperation from the shaft
• | Replace the water pump.