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Dodjour

Rad fan not cycling correctly

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Can anyone tell me the parameters for wich the electric cooling fans turns on/off?

it’s not causing overheating issues in the engine but it is causing A/C issues. At idle it will kick on but only for a few seconds then kick off and continue to do this regularly every few minutes. I want to know what is telling it to kick on and what values it used so i can determine the problem, or if there even is one.

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Maybe you’re low on refrigerant and the compressor is also cycling which makes the fan cycle. Just a thought. 

Edited by jkeaton

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Not low and the compressor isn’t cycling 

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1 hour ago, Dodjour said:

Not low and the compressor isn’t cycling 

have you actually had the refrigerant pressure checked ?

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I have manifold gauges and have checked the pressure verified by a certified tech. Yes fan acts the same with AC on or off

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