coolant temp sensor location

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500, 472, 425, 368 Discussion, coolant temp sensor location in Cadillac Engine Discussion; I was wondering wheres the coolant temp sensor on a 1980 368 carbuerated motor??...
  1. #1
    cadillac_81 is offline Cadillac Owners Member
    Join Date
    Nov 2012

    coolant temp sensor location

    I was wondering wheres the coolant temp sensor on a 1980 368 carbuerated motor??

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  3. #2
    The Ape Man's Avatar
    The Ape Man is offline Cadillac Owners Connoisseur
    Automobile(s): '80 Fleetwood Coupe, 1994 and 1995 Mercedes 140 Coupe
    Join Date
    Feb 2005
    Southern NJ

    Re: coolant temp sensor location

    There are 2 different ones. Passenger side cylinder head near one corner next to a head bolt in the same plane. That one is a normally open switch to disable blower with cold engine calling for heat.

    Driver side same place mirror image of the passenger. Normally open runs overheat idiot lamp.

    AFAIR there is not a coolant sensor on the carbonated engines. That is to say nothing dipped in the antifreeze flow. Those switches/sensors screw into cast iron.

  4. #3
    cadillac_81 is offline Cadillac Owners Member
    Join Date
    Nov 2012
    Thread Starter
    Oh ok, mine coolant temp light keeps flashing on and off even when the engine is cold, how can you tell if your engine is overheating?? I flushed the coolant, replaced thermostat i drove it all day and not a problem. The light flashes on and off .like random

  5. #4
    Lorcinls1 is offline Cadillac Owners Member
    Automobile(s): 14 CTS-V Wagon, 09 ESV, 84&86 Fleetwood Hearse
    Join Date
    May 2010
    New Orleans

    Re: coolant temp sensor location

    Mine is doing something similar. I have the carbed 368. Light was on and the car hadn't run in a few days. I changed the stat now it comes on sometimes. It's more random. I want to install a temp gage just need to figure out which sensor needs to be replaced with gage sensor.

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