car overheating with AC on.

[DRA4]

My car is overheating with the AC on for the last 2 days now, not good at all with this summer heat, i open the hood with the ac on and the small fan is not turning on, any of you know what could be the cause of this, i change the temp coolant sensor like 5 days ago, cause the temp gauge was going crazy, now this, need help fast, is too hot to be with no AC.

[Brrman]

Coolant temp sensor doesn't control/show the temp gauge in the cabin... the small sensor out by the radiator does that. The coolant temp sensor is the one that plugs into the end of a coolant line behind you engine - totally diff purpose.

My guess is a fan switch is not working if you don;t hear the 2ndary fan.

[DRA4]

ok Thanks a lot, i will check that out.

[audispeed96]

hey where did you get the wrench to open the damn temp sensor because i bought the sensor and i need to get it changed. i live in queens, if its not a problem, can i pick up the wrench an borrow it from you because its hard to get a 29mm key. thanks

[DRA4]

Well my friend just took a few parts out and took the sensor out and put the new one with his hands, but i will ask him again.

[4ingDrive]

Could be a bad fan relay too.