Is removing the thermostat valve a safe solution for overheating in Suzuki Bolan?

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Is removing the thermostat valve a safe solution for overheating in Suzuki Bolan?

Many local mechanics in Pakistan suggest removing the thermostat valve permanently to avoid overheating. They say it’s a common practice in Bolan vans. Is this actually safe for the engine in the long run? What are the risks of running the Bolan without a thermostat?

Gari Specialist asked on 10 Apr 2025 12:01:44 pm

1 Answer

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Gari Master - on 10 Apr 2025 12:16:45 pm

Removing the thermostat is a common but risky Desi fix used by many mechanics in Pakistan. While it might temporarily prevent overheating, it is not a long-term o r ideal solution.

Risks of removing the thermostat:

Engine runs too cold, especially in winter.

Poor fuel efficiency.

Weak heater performance.

Increased engine wear over time due to improper operating temperature.

Delayed warm-up causes the ECU to run rich wasting petrol.

Safer alternative:
Replace the faulty thermostat instead of removing it. A properly working thermostat helps maintain ideal engine temperature, which is important for engine health and fuel economy.