Fan switch temperature

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  • keith_h
    • Nov 2011
    • 549

    #1

    Fan switch temperature

    Does anyone know at what temperature the radiator fan switch activates on a Sierra 2.0 DOHC fuel injection engine.
  • stevejgreen
    club member
    • Nov 2011
    • 3480

    #2
    Re: Fan switch temperature

    I thought the standard Sierra had a viscous fan and not an electric one.
    I might be wrong, and who knows what adaptations have been made.
    MOC member since 05/97
    1984 Marlin Roadster SWB.
    1800TC, Unleaded ported head, stage 2 cam. Ford Type 9 gearbox, Dolomite Sprint rear axle fitted with MGF disc brakes.
    Three core radiator, Renault Clio vented front discs.
    The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.

    Loads of Marlin Reference can be found documents here or there.

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    • keith_h
      • Nov 2011
      • 549

      #3
      Re: Fan switch temperature

      I have subsequently found out that it has 2 electric fans, side by side, one coming in at one temperature and the second at a slightly higher temperature

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      • greyV8pete
        frequent forum contributor
        Club Member
        • Nov 2011
        • 1648

        #4
        Re: Fan switch temperature

        Keith. The Sierra fan switches usually have the temp stamped on one of the flats on the hexagonal "nut". Else look on the inner face that contacts the coolant. Peter.

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