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    2004 Toyota Truck Sequoia 4WD 4.7L SFI DOHC 8cyl

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    Temperature Switch

    Temperature Switch Operation:

    A bi-metal, heat activated, switching device that controls an electrical circuit based on engine metal/coolant temperature. It controls the cooling fan(s), temperature light or gauge, fuel mixture, emissions controls and electronic-control unit functions. It's usually made of brass or stainless steel and uses a tapered pipe thread (NPT) for dependable sealing.

    How To Instructions:

    Test - Give it an in-depth diagnosis.
    Replace - Out with the old, in with the new.

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