Are over-heating complaints in Changan Kalam often linked to water pump failure in Pakistan’s hot weather?

Home > Gari Forums > Changan Forums > Changan Kalam Forums > Changan Kalam Faulty Water Pump Forums

Are over-heating complaints in Changan Kalam often linked to water pump failure in Pakistan’s hot weather?

In areas like Karachi, Lahore, and Multan, overheating is common. Is the water pump failing to circulate coolant efficiently under extreme heat?

Sandeep asked on 25 Jun 2025 12:30:24 pm

1 Answer

6 views |

Car Mechanic Expert - on 25 Jun 2025 12:40:25 pm

Yes. In Punjab and Sindh, temperatures regularly cross 45°C, and a weak o r failing water pump cannot circulate coolant efficiently.

This causes heat pockets to form near the engine head, leading to:

Coolant boiling

Radiator cap blow-offs

Overheating in traffic o r under AC load

In many cases, the underlying issue is the water pump, but it’s misdiagnosed as a radiator o r fan issue.