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Thread: 300 tdi header tank temp.

  1. 17th May 2019, 05:32 PM #1
    Bazzle218's Avatar
    Bazzle218
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    300 tdi header tank temp.

    Drove home tonight, about 15 klm. Hardly warm up distance i no. Anyway doing my weekly first Parade in arriving home noticed on checking the coolant level, the header tank coolant was luke warm just. When i felt the thermostat housing i could not hold it as it was to hot to touch. Not blistering. Thinking sticking thermo or three way valve before header. No signs of over pressure in system. Thoughts ???
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  2. 19th May 2019, 03:53 PM #2
    jboot51
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    The 3 way ejector valve will be blocked.
    There should be constant flow through the valve from the thermostat housing to the expansion tank.
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  3. 20th May 2019, 06:35 AM #3
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    loanrangie
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    Quote Originally Posted by jboot51 View Post
    The 3 way ejector valve will be blocked.
    There should be constant flow through the valve from the thermostat housing to the expansion tank.
    Replace it with a brass Y piece.
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  4. 20th May 2019, 02:55 PM #4
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    Quote Originally Posted by loanrangie View Post
    Replace it with a brass Y piece.

    Done replaced with brass and correct diagnosis as 3 way valve blocked. I m a happy chappy now.
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