Why Does My Suzuki Mehran Engine Overheat During Summer Drives?

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Why Does My Suzuki Mehran Engine Overheat During Summer Drives?

In hot weather, especially during long drives o r traffic jams, my Mehran’s temperature gauge starts climbing quickly. Sometimes it even reaches the red zone. What causes the overheating in Mehran and how can I prevent engine damage during summer?

Gari Specialist asked on 16 Apr 2025 14:15:16 pm

1 Answer

18 views |

Gari Master - on 16 Apr 2025 14:19:01 pm

Suzuki Mehran is known to overheat easily, especially in hot weather and traffic due to:

Weak cooling system: The radiator fan in carburetor models is belt-driven and always runs at engine speed. In traffic, it doesn’t spin fast enough to cool the engine properly.

Old radiator o r coolant leaks: Over time, rust, scale, o r low coolant levels reduce cooling efficiency.

Faulty thermostat: A jammed thermostat valve can block coolant flow, causing overheating.

Poor radiator cap: A worn cap won’t hold pressure, causing the coolant to boil early.

🛠 Fix:
Upgrade to an electric fan like the one in EFI models.

Flush radiator and refill with a proper coolant-water mix not just water.

Replace the thermostat and radiator cap if old o r worn out.

Check for coolant leaks in hoses and radiator.