Coolant level sensor location

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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Coolant level sensor location in Past Cadillac Vehicle Discussion; Hi, Coolant level is correct ( half of surge tank) but I get the "check coolant level" message Need to ...
  1. #1
    StarLimos is offline Cadillac Owners Member
    Automobile(s): Stretch Deville
    Join Date
    Sep 2009
    Paris, France

    Coolant level sensor location


    Coolant level is correct ( half of surge tank) but I get the "check coolant level" message

    Need to find the level sensor to test it, but was unable to locate it.

    Would someone know where it is? Car is a 2000 Deville "Y" engine Northstarwith limo conversion option.

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, install a boombox
    Automobile(s): 2002.5 F55 STS - 67,500 miles, 2014 Explorer XLT FWD
    Join Date
    Feb 2006
    MD Eastern Shore, Kent Island

    Re: Coolant level sensor location

    The sensor is a reed switch in a receptacle in the bottom of the coolant reservoir. Snap-in. Check the electrical connector, or the magnetic float itself may be stuck down for some reason. Once in a while removal and a thorough cleaning of the tank frees things up.

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