Man TGS 26.320 there's pressure on the coolant . The engine starts well within seconds pressure

Discussion in 'Volvo Forum' started by Moven, Jun 19, 2021.

  1. Moven

    Moven Bobtail Member

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    Jun 19, 2021
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    The engine starts and runs well no high temperature shown on the gauge . Pressure builds up within few seconds . What might be possible causes
     
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  3. roundhouse

    roundhouse Heavy Load Member

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    1,552
    Jul 11, 2018
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    Did they test for exhaust gases in the coolant ?

    soinds like a blown head gasket

    positive test for exhaust gas in coolant would confirm it
     
  4. MLC Adventures

    MLC Adventures Light Load Member

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    May 2, 2021
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    Pressure building that fast is likely coming from somewhere other than internal. What truck?
     
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