What symptoms indicate that the thermostat in a Changan Alsvin is stuck open o r closed?

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What symptoms indicate that the thermostat in a Changan Alsvin is stuck open o r closed?

How can owners identify whether the thermostat is stuck open engine runs cold o r stuck closed overheats? What role does this play in triggering limp mode?

Zarnish asked on 11 Jun 2025 11:46:27 am

1 Answer

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Car Mechanic Expert - on 11 Jun 2025 11:50:06 am

Thermostat Condition Symptoms Consequences
Stuck Open Engine takes too long to warm up, poor heater performance, blinking “COOL” light even after 10–15 minutes Poor fuel economy, emissions, potential limp mode
Stuck Closed Engine overheats quickly, boiling coolant, possible radiator overflow Engine damage, limp mode, ECU power cut-off
💡 Limp Mode: Triggered when the ECU detects overheating o r abnormal temperature profiles.