JonathanD4D

Hot start problem on Yaris D4-D

Hello everyone, I have a problem with my Toyota Yaris D4-D. For almost a year now, when the engine is hot and I make a stop, it's impossible to restart. The 'cool' temperature light flashes and the engine makes a 'CLAC' sound without starting. After about an hour of waiting, when the engine cools down, the light stays on and the car starts. I have already replaced the alternator and the coolant temperature sensor. I plan to change the thermostat because I also have very little heating in the vehicle. Do you have any ideas on what could be causing this problem? Thank you in advance for your help and have a good day.

(Translated from French)

A Toyota Yaris D4-D experiences a hot start problem where the engine won't restart after being turned off when hot, accompanied by a flashing 'cool' temperature light and a 'CLAC' sound. The issue resolves after the engine cools down. Despite replacing the alternator and coolant temperature sensor, the problem persists. Suggested solutions include checking the battery connections, inspecting the starter relay and its connections, and examining engine ground connections for corrosion or looseness.

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3 comment(s)

Check the battery connections and ensure they are clean and tight. A weak or failing battery can cause starting issues, especially when the engine is hot. If the problem persists, consider having the battery tested. Let me know how it goes or if you have any further questions!

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Check the battery connections and ensure they are clean and tight. A weak or failing battery can cause starting issues, especially when the engine is hot. If the problem persists, consider having the battery tested. Let me know how it goes or if you have any further questions!

Hello, thank you for your answer, the battery, alternator & starter are new.

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community_quotation:
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Hello, thank you for your answer, the battery, alternator & starter are new.

Inspect the starter relay and its connections. A faulty relay can cause starting issues when the engine is hot. If the relay seems fine, consider checking the engine ground connections for any corrosion or looseness. Keep me updated on your progress or if you have more questions!

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TOYOTA

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YARIS