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Strange cooling problem

Discussion in 'VR - VS Holden Commodore (1993 - 1997)' started by coolngroovy, Jun 25, 2008.

  1. Jun 25, 2008 #1
    coolngroovy

    coolngroovy Member

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    After about 10mins of driving, the temp gauge hits 3/4, the dash warning light & siren go off, then the temp returns to normal & all is good!
    VS Caprice, eco.
    Anyone have an idea?
    Cheers, Col.
     
    coolngroovy, Jun 25, 2008
    #1
  2. Jun 25, 2008 #2
    vsiicalais

    vsiicalais Donating Member

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    could be a faulty thermostat or a possible partial blockage of one of the pipes but im guessing its more a faulty thermostat
     
    vsiicalais, Jun 25, 2008
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  3. Jun 25, 2008 #3
    hako

    hako Donating Member

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    I'm with littlegeorgy01 - thermostat sticking when cold then once forced open behaves normally.
     
    hako, Jun 25, 2008
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  4. Jun 25, 2008 #4
    coolngroovy

    coolngroovy Member

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    I will change it. Thanks.
     
    coolngroovy, Jun 25, 2008
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  5. Jun 25, 2008 #5
    Harvs82

    Harvs82 Active Member

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    Failing that, your temperature SENDER (the one that controls what is shown on the dash) could be faulty too. When the gauge is showing 3/4 is the cooling fan coming on? If so, does the temperature drop down again?
     
    Harvs82, Jun 25, 2008
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  6. Jun 26, 2008 #6
    coolngroovy

    coolngroovy Member

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    yes it does.
     
    coolngroovy, Jun 26, 2008
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  7. Jun 29, 2008 #7
    coolngroovy

    coolngroovy Member

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    Update.
    Loosing coolant. No visable leaks.
    I took the rad cap off & started the engine, when the thermostat opens there is a steady stream of bubbles!
    The heads are coming off next weekend!
    Car has 105000ks, it sat in storage for 3yrs before i bought it.
    Looks like it didn't like the rest!
     
    coolngroovy, Jun 29, 2008
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