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Why is my Suzuki Cultus overheating due to a faulty thermostat?

Why is my Suzuki Cultus overheating due to a faulty thermostat?

A malfunctioning thermostat can cause the engine to overheat by not regulating the coolant temperature properly. What are the common symptoms of thermostat failure in a Suzuki Cultus, and how can it lead to engine overheating?
Gari Specialist asked on 20 Mar 2025 12:53:03 pm
1 Answer
19 views |
Gari Master - on 20 Mar 2025 12:56:01 pm
A faulty thermostat in your Suzuki Cultus can cause the engine to overheat by failing to regulate the flow of coolant through the engine. The thermostat’s primary function is to open and close at a specific temperature to allow coolant to flow into the engine and regulate its temperature. If it gets stuck in the closed position, it prevents the coolant from circulating properly, causing the engine to overheat.

Common Causes of Thermostat Failure:

Sticking o r Seizing: Over time, thermostats can get stuck in the closed position, blocking coolant flow and causing the engine to overheat.
Corrosion o r Debris: Accumulation of debris o r rust inside the thermostat housing can prevent the thermostat from functioning properly.
Old Thermostat: The thermostat can become worn out over time, leading to malfunction o r complete failure.
Symptoms of a Faulty Thermostat:

Engine Overheating: This is the most common symptom. The engine temperature gauge will show higher than normal temperatures, and you may notice the engine running hotter than usual.
Coolant Leaks: If the thermostat is malfunctioning, it can cause pressure build-up, leading to leaks in the cooling system.
How to Fix:

Replace the Thermostat: If the thermostat is faulty o r stuck, it needs to be replaced with a new one. Ensure that the replacement thermostat is compatible with your Suzuki Cultus model.
What to Do:
If your car is overheating, inspect the thermostat and replace it if necessary to restore normal engine temperature.
 

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