Toyota Corolla Overheating When A/C Is On – Any Fixes?

Home > Gari Forums > Toyota Forums > Toyota Corolla Forums > Toyota Corolla Overheating Engine Forums

Toyota Corolla Overheating When A/C Is On – Any Fixes?

Hey folks,

My Corolla runs fine, but whenever I turn on the A/C, the temperature starts rising quickly. Could this be an issue with the cooling fans, radiator, o r something else?

Would love to hear if anyone has experienced the same issue and how they fixed it.

Lubaba asked on 30 Jan 2025 11:26:35 am

1 Answer

22 views |

Car Mechanic Expert - on 30 Jan 2025 11:40:50 am

If your Corolla’s temperature rises quickly when you turn on the A/C, it could indicate an issue with the cooling fans o r the radiator. The cooling fans are responsible for maintaining the engine’s temperature, especially when the A/C is on, and if they aren’t working properly, it can cause overheating. Check the fans to see if they turn on when the A/C is activated. It could also be a problem with the radiator itself, such as clogs o r low coolant levels. Ensure that the coolant is topped off and the radiator is in good condition. If the fans and radiator seem fine, it might be worth having a mechanic check for any deeper issues with the system.