Car overheating and A/C not cooling the car when car is parked

Good afternoon,

You need to perform a pressure test to check for any coolant leaks. That will cause overheating. Check for any leaks at the hoses.

https://www.2carpros.com/articles/engine-overheating-or-running-hot

https://www.2carpros.com/articles/radiator-pressure-test

If that is good, I would suggest a thermostat as it may be stuck closed or partially closed.

https://www.2carpros.com/articles/replace-thermostat

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

Are the cooling fans working when it heats up? If they are not, then that is the reason it is heating up at idle.I attached a wiring diagram of the fans for you. I would check the fuses to be sure there is power on both sides of the fuse.

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-a-car-fuse

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-an-electric-cooling-fan-works

Roy