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Origineel bericht door: Tim A ,

Titel:

What tells the cooling fan to turn on?

Tekst:

My fan turns on before my engine warms up. It does turn off after 20-25 seconds of running but it’ll start back up again before engine heats up. What tells the fan that the engine needs cooling and it “the fan” needs to turn on?

Apparaat:

1999-2006 Volkswagen Jetta

Status:

open