How should the the radiator fan & A/C fan operate when the A/C is turned on?
When I have the A/C turned on the fans behind the radiator ( 2 of them ) both cycle on and off
...repeatedly. Neither fan stays on for any length of time. Shouldn't at least one fan stay on
when the A/C is on? I noticed this when I was in a parking lot waiting for someone because I
kept hearing the fans turning on then off, on then off. It doesn't matter what temp the A/C is set
at the fans just keep turning on then off.
No they should cycle like that, one fan is for engine cooling the other is for A/C. The A/C fan will start to stay on longer as the pressures rise in the high line for temperature exchange. The other will cycle as engine temps rise and fall.
The thermostat operates the ac in probably 30 second on off cycles. This is why it would be stopping and starting. Some cars have 2 fans . All cars run hotter with the ac on. You will find, a vehicle with 1 fan, will probably run all the time with the ac on, even from a cold start up.
My cooling fans are not coming on I turn the heater on and the AC on and they're not coming on my temperature gauge reads above halfway when I put it in park from a drive they go on sometimes both ends I don't know what to do I put new center tell you truth I don't know where all the sensors are at I've been looking under the hood and under the dash
No idea. If you have 2 fans (some only have one) the a/c fan should come on as soon as you turn the a/c and the ignition on. The cooling fan may never come on, depending how hot the engine is.
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