Shouldn't the radiator fans kick on when ac is turned on?

once the compressor kicks on the fan for ac should come on is ac charged?

check to see if the electric fan at the front of the AC radiator is comming on when the AC is turned on

The fans are radiator cooling fans. They are temperature controled so when you first start your engine in the morning they should not run - UNLESS you start it with your AC on. If you turn your AC on one of them should start operating and the other one will kick on when your engine starts getting hot.

If you have two electric fans the fan on the passenger side of the vehicle is the radiator cooling fan, that fan should run when the motor gets to hot. The fan on the driver side is the ac condenser fan that fan runs only when the a/c is turned on. The only time that both fans run is if the a/c is on and the motor or coolant is above normal tempeture.

Thanks for choosing FixYa and welcome to the site. The fans should come on as soon as you turn the a/c on. There shouldn't be any delay. You could have a bad water pump, valve, or impeller. A bad head gasket can cause overheating also, but I would look into the pump first. Do the flush first. It may help. If it doesn't, look at the water pump.

Several things may be the culprit:

Fan relay - this tells the fan to turn on when the AC is turned on - $50 part DIY
Thermostat - should be in the front of the engine on top with hose running to it - $9 part DIY
Radiator Fan shot - u can replace the fan motor for about $100 DIY
Coolant temperature sensor - tells the fan to kick on when the coolant gets to a certain temp

While the engine is running and warmed up, lift the hood and listen or look to see if your radiator fan is running (the fan should kick on around 190-210degrees) if not, turn on the ac and and see if the fan starts running, if not, your fan motor is bad

Hope this helps

one fan is for the AC while the other is used with the motor heat,, when you replaced the radiator did the new one have the same number of fins,, Hope so,, next check the thermostat you may have dislodged some sludge thats preventing it from doing its job correctly you may have to replace it too ,, as far as the fans ,, check once the motor is heated up with the ac off that the one fan is working, then turn on the ac to see if they both kick on, If not,, check the fan relays and fuses

only one is suppose to work the other kicks on when you turn ac on turn ac on does it come on now let me no and i can help you more from there check water level do you have the correct amount of water in resevior of car when car heats up half way fan kicks few minutes later fan should kick off with ac off of course sticking thermostat can cause car to over heat

What is the mileage? Check the reservoir for coolant, when the engine is COLD,... I repeat COLD, check the radiator for fluid. If fluid is present, check to see if your fans are working properly, turn your AC on and your fans in front of your motor should kick in within minutes.

If you have coolant in the reservoir and radiator (suspect a new thermostat, replacing the radiator will benefit greatly too)

If your fans do not turn on within minutes, replace your radiator fan relay.

Ok, fans work but you should replace temp. sensor so they come on automatic. If the temp gauge inside the car is getting really hot its either because the termostat is stuck closed or your water pump is pumping water to circulate it through the radiator and engine