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1990 7.3 idi warning lamp

Discussion in '6.9L IH & 7.3L IDI Diesels' started by Darrell Martin, Apr 15, 2021.

  1. Darrell Martin

    Darrell Martin Registered User

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    I have a 1990 international bluebird bus 3700. It has a Ford 7.3 idi engine. My engine temperature warning lamp connector is broken. I've searched and searched for this thing but cannot find it. It's a single wire plug. Any one know what I can do?
     
  2. Randy Bush

    Randy Bush Full Access Member

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    It is not really a must to have, Have not looked into it at all, but not sure way a normal light would not work, power to the light and the sender provides the ground when the engine gets to hot. A good working temp gauge is as important as anything IMO
     
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  3. Darrell Martin

    Darrell Martin Registered User

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    Thank you.
     
  4. Cubey

    Cubey Full timer RVer

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    An alligator clip work probably do the trick. That's what I did for one of the tiny wires for my RV grey water tank sensors. Similar thing, uses ground.
     
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  5. Darrell Martin

    Darrell Martin Registered User

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    My wire is not the problem, the sensor is broken into the motor. Not where I cannot get it out just the top plug part.
     
  6. Cubey

    Cubey Full timer RVer

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    Oh, so the sender is broken, not the wire connector.
     
  7. IDIBRONCO

    IDIBRONCO IDIBRONCO

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    I would guess that you could drain the radiator and remove the broken sender with an Easy Out or something similar.
     
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  8. Darrell Martin

    Darrell Martin Registered User

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    Correct
     
  9. Darrell Martin

    Darrell Martin Registered User

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    My wire is a single plug. The sender is what's broken

    20210415_123535.jpg
     
  10. Cubey

    Cubey Full timer RVer

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    If you don't have a real temp gauge, I'd pull the warning light sensor out and install a proper gauge probe in it's place. Equus gauges aren't expensive and seem good quality. I have an electric probe temp gauge in my truck by them and a mechanical one in my RV.
     
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