What symptoms should Changan Kalam drivers in Pakistan look out for to detect early thermostat problems before overheating damages the engine?

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What symptoms should Changan Kalam drivers in Pakistan look out for to detect early thermostat problems before overheating damages the engine?

Owners need guidance on warning signs like fluctuating temperature gauge o r poor heater performance. Is enough awareness being created?

Qalb E Momin asked on 18 Jun 2025 18:11:58 pm

1 Answer

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Car Mechanic Expert - on 18 Jun 2025 18:16:01 pm

📍 Important early signs:
Symptom Possible Issue
🔺 Gauge spikes after a short drive Thermostat stuck closed
🔻 Engine doesn’t reach full temp Thermostat stuck open
🔄 Fluctuating cabin heater temps Inconsistent coolant flow
💨 Gurgling o r bubbling coolant Trapped coolant closed valve
🛑 Poor mileage in winter Engine running cold
🌫️ Weak AC performance in hot climate Overheating causes ECU throttling
💡 Delayed o r no temp warning Sensor-thermostat desync

🛡️ Advice: Check thermostat every 30,000–40,000 km, especially if the car is used in extreme heat o r frequent city driving.