temp sensor location...

Discussion in 'Technical' started by 71gold, Aug 6, 2018.

  1. 71gold

    71gold Frank Cooper Supporting Member

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    I need to relocate a temp sensor because of my new E-waterpump install.
    it needs to go in a radiator hose....
    my question..the inlet or outlet hose from the radiator?
    the one that needs to move is at the end of the top radiator hose in the w-pump in the pic.
     

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  2. Krazy Comet

    Krazy Comet Tom

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    Unless you have a T arrangement, never in a radiator hose, must be where coolant is continually circulating.

    As long as temp isn't controlled by a shut off valve, the inlet to heater core is usually fine.
     
  3. groberts101

    groberts101 Member

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    However you want to view it.. temp sensor goes in hotter output side of engine/waterpump.. or hotter input side of rad.

    Maziere and others sell an inline hose fitting with sensor bung. Only downside is the need to split and shorten the hose in a straighter section to get the new adapter in place.
     
  4. 71gold

    71gold Frank Cooper Supporting Member

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    thanks...
     
  5. baddad457

    baddad457 Member

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    You can also use a T-stat housing that's got a sensor bung on it to mount your temp sensor. It won't register anything till the T-stat opens up. But that will also tell you the T-stat is working.
     
  6. virusmind

    virusmind Member

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    Guys, on my 3.3 there is a bung in the thermostat housing and there is also an idiot light switch in the head by the firewall. I have put the electric fan switch in the thermostat housing which I understand is best. I am debating keeping the idiot light connected and putting an inline (upper radiator hose) water temp sensor adapter in place for a gauge.. Any cons to using the inline adapter? Anyone know what size the upper hose is? 1 1/4" ??? Is the back of the head suitable for a temp sensor or should that be between the thermostat and radiator?
     
  7. Krazy Comet

    Krazy Comet Tom

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    With lack of coolant, a rubber hose won't be anywhere near the actual engine temp.

    The 5.0 Mustang/T-Bird/LSC etc used formed metal tubing that sensor bung was near the point tubing screwed into manifold.
     
  8. virusmind

    virusmind Member

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    So I tried to install the coolant temp sensor in the back of the head by the firewall. This was a total fail. The threads are correct size but the sensor probe just falls into the head. I guess this location doesn't have the adequate configuration.
     
  9. 71gold

    71gold Frank Cooper Supporting Member

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    I don't understand this...:huh:
     
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  10. virusmind

    virusmind Member

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    Right? So water temp sensors have a threaded brass part that tightens the sensor into place. See pics. When I tighten this mofo into the head, the threads are right but the dang sensor just slides into the head. IMG_20190227_201812851~01.jpg
     
  11. Maverocket

    Maverocket Bob Williams

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    There is a special adapter fitting for the flange on the temp sensor.
     
  12. virusmind

    virusmind Member

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    Geez. Ok, I'm looking for one. Feel free to link. I'm also considering an electric vdo gauge because it has a different style of sensor that doesn't require the flange seat. Honestly tho, is monitoring the temperature at the back of the head a bad idea?
     
  13. William623

    William623 Member Supporting Member

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    This should clear things up for you.
     
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  14. virusmind

    virusmind Member

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    That video is awesome! Thanks.
     
  15. virusmind

    virusmind Member

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    I don't think I'm dealing with AutoMeter brand gauges. They look like some generic 2" gauges from back in the day so hopefully the are the same.
     

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