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I have a 1994 caprice 5.7 liter v8 with two cooling fans. The second one is only supposed to come on when the a/c is running. It does not due to the Engine Control Module (computer brain) not telling it to. The fan was tested with a direct wire and it works fine. The options are to replace the ECM or run a jump wire where the relay for you fan(s) are and connect a toggle switch to it and cut it off and on as needed. .
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∙ 8y ago
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What makes a 92 stanza run hot until you turn on the ac?
You probably have a bad temperature sensor. TS reads the temp of the coolant and turns the fans on when hot enough. Without it the fans arent controlled by temp. When you turn on the AC the fans always come on.
Why are your fans turning on intermitently?
When I turn my AC on sometimes they come on and sometimes dont, causing it to overheat. I checked the fans by hotwiring from the battery and they turned on everytime.
Why would 98 cadillacs eldorado's Cooling fans only work when ac is on what could be the problem?
The cooling fans are set to come on when the coolant reaches 224 degrees (low speed) and 240 degrees (high speed). If they do not turn on (without the AC) then either your coolant does not reach 224, or the switch that turns them on and off is bad. The switch should not be hard to replace, or too expensive. Since you mention that they do come on with the AC, then we know it's not the fans themselves.
What should you check if the AC on a 2001 VW Beetle blows warm air and the coolant and pressure are good?
check to see if your rad. fans come on when you turn on your a/c the compressor will not work if the do not come on
Should the radiator fan come on when you cut the ac on?
Yes, when the a/c is used the engine works harder which rises the temp of the engine then turn the fans on to cool the radiator.
How to keep the house cooler during summer?
Close the blinds, fans
Is fan operating in ac voltage?
A fans blades are driven by motors. Since there are both AC and DC motors, fans can be AC or DC. The fans in your computer are DC fans. Your ceiling fans are AC fans. (Thanks for fixing my answer)
I have an 2001 grand am as i am bleeding the cooling system it overheats no fans kick on but if ac turned on the fans work?
I believe that the fan(s) come on automatically with the AC system. Someone else might be able to confirm that. If so, then I would guess that you need to find and replace the temp sensor/switch for the fans.
Why would the cooling fans for the radiator not come on a 1994 Honda Accord if the fuses look good. Even if the the ac is off?
check the relay / check the temp sensor / try turning the fan on by turning on the AC - fan should come on when the AC compresor turns on /
Why do your electric cooling fans turn on when you just start the truck 06 silverado 5.3?
If the AC is on, that is normal.
Why does your radiator fans not cut in on your vectra after changing fan switch on radiator?
Electric fans on vehicles only run when necessary,,,over heating or the temperature getting near a dangerous level. They just do not come one when the vehicle runs. Normally they WILL come on if you turn the AC on because of the added stress on the engine.
Why does your 95 Taurus engine cooling fans run only when ac is on?
they do for the ac they only come on when the engine temp is peaked about 210 deg
