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Thread: temp gauge

  1. 17th February 2009, 10:56 PM #1
    wozapinin's Avatar
    wozapinin
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    temp gauge

    g'day, my temp gauge on my d2 4.0 only just moves off lowest point, Stays in the blue. I guess it should be about half way. Any ideas what could be the problem? cheers.
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  2. 17th February 2009, 11:11 PM #2
    Tombie Guest
    Quote Originally Posted by wozapinin View Post
    g'day, my temp gauge on my d2 4.0 only just moves off lowest point, Stays in the blue. I guess it should be about half way. Any ideas what could be the problem? cheers.
    Thermostat jammed open
    Electrical problem

    Either of these could be your issue
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  3. 18th February 2009, 05:57 AM #3
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    Pedro_The_Swift
    Pedro_The_Swift is offline The MOD Father
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    Hint; If the thermo is jammed open you will be getting horrible fuel mileage. Yes, it is possible to get worse than normal
    "How long since you've visited The Good Oil?"

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  4. 18th February 2009, 02:06 PM #4
    keithy47
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    The temp sender could be high resistance. Easiest way to check that its not the gauge would be to disconnect the wire running to it and short it out on the block, since its a neg return when you turn the igniton temp gauge should read max. Well at least thats how i checked my D1 V8 sender, im aussming the D2 has the same setup.
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  5. 18th February 2009, 02:21 PM #5
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    wozapinin
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    Will I be able to check if jammed open after taking unit off vehicle? Looks like a sealed unit. Am i better off getting a replacement?
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  6. 18th February 2009, 03:16 PM #6
    keithy47
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    Well if you have a multimeter you can check the resistance of the sender unit, mine was about 450ohms cold and after a few min in boiling water droped to 160 ohms.
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  7. 18th February 2009, 03:21 PM #7
    Pierre
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    From family induced experience, anything to do with faults on D2 V8 cooling systems is best solved by NEW PARTS.

    The thermostat assembly (external, plastic, joined into several hoses) is not an expensive item, but an overheat repair can be an extremely costly event.

    Check the guage is working correctly, and replace the thermostat.

    MTBW

    Cheers

    Pete
    Dizzie, 08 D3 TDV6 SE
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