temp sensor location

Discussion in '2nd Gen 1991-1996 1.9L SOHC' started by drphyco, Sep 13, 2010.


  1. drphyco

    drphyco New Member

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    1993 ford escort lx 1.9l 3 door auto

    ive searched on the forums and online. unfortunately my local auto parts store doesn't have the book at its gonna take a while for me to get it (as i cant drive my car very far because it overheats) ive tracked it down to most likely the temp sensor not triggering the fan cause it turns on at start up but then shuts off. i already replaced the relay and that is working just fine

    and flamers im sorry but im a rotary specialist i don't work on cars too much with pistons < (a joke btw)
  2. Dave94LX

    Dave94LX FEOA Donator

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    temp sensor is mounted in the air box.
  3. drphyco

    drphyco New Member

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    whoops meant coolant temp sorry
  4. denisond3

    denisond3 Moderator Staff Member

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    The coolant temp sensor is the sensor mounted in the pipe that runs from the bottom of the thermostat housing, back toward the firewall. There it feeds a hose going into the heater inside the car. The sensor has two wires going to it, and unscrews from the tube its in.

    Its normal for the fan to spin for a second when you start the car up. I like the design, since it shows that the fan motor is still working and the -three- fan relays arent melted yet.
  5. madmatt2024

    madmatt2024 FEOA Member

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    Mounted in the thermostat housing. Follow the upper radiator hose and you will find it. Its the sensor with 2 wires going to it.
  6. drphyco

    drphyco New Member

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    ya but then it doesnt come on at all and the temp gauge goes all the eay up past the normal letters and still wont come on.
  7. madmatt2024

    madmatt2024 FEOA Member

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    So change the sensor.
  8. drphyco

    drphyco New Member

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    im going to but i have a few appointments tomorrow morning. so i was just looking for a fix while im out. then once i get home then im gonna change it out as the part is coming in tomorrow and i couldn't do it today. but you guys have been a great help. some nice guys on this forum.
  9. juggalo

    juggalo New Member

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    if ur car has a/c, run it to run the fan. been there, done that. ur gas mileage is gonna suck tho.
  10. madmatt2024

    madmatt2024 FEOA Member

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    I remember reading that if you unplug the sensor then the fan will run constantly.
  11. cklaubur

    cklaubur FEOA Donator

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    I know that's true on the 3rd gens (in fact, I'm dealing with this problem myself, since the ECT failed with infinite resistance and the computer thinks it's disconnected), but not sure on the 2nd gens.

    Casey
  12. juggalo

    juggalo New Member

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    it won't work like that on 1.9's
  13. Escortlvr1

    Escortlvr1 FEOA Member

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    The fan does stay on constantly with the temp sensor unplugged on a 95, that's how mine is at the moment...
  14. denisond3

    denisond3 Moderator Staff Member

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    With my 91 LX I tried it. A couple of seconds after I had pulled the connector off the sensor the fan came on. A few seconds after I pushed the connector back on - the fan shut down.

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