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Coolant leak

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by tanveer702, Jun 11, 2019.

  1. Jun 11, 2019 #1
    tanveer702

    tanveer702 Bobtail Member

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    Dec 22, 2018
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    2EC83277-B7CD-41BD-A188-FB2AA9843A17.jpeg [​IMG]

    Does anybody knows the thick hose from top right corner(passenger side) of the radiator going to the engine, what is it called?
     
    tanveer702, Jun 11, 2019
    tanveer702, Jun 11, 2019
    #1
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  3. Jun 11, 2019 #2
    Concorde

    Concorde Road Train Member

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    Top radiator hose.
     
    Concorde, Jun 11, 2019
    Concorde, Jun 11, 2019
    #2
    Dave_in_AZ Thanks this.
  4. Jun 11, 2019 #3
    uncleal13

    uncleal13 Road Train Member

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    The three or four inch diameter one?
    Just called the upper rad hose.
     
    uncleal13, Jun 11, 2019
    uncleal13, Jun 11, 2019
    #3
    Dave_in_AZ Thanks this.
  5. Jun 11, 2019 #4
    tanveer702

    tanveer702 Bobtail Member

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    Dec 22, 2018
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    Yes, there is a coolant leak at the point where it connects to the engine, leak is not much but some drops are there and the coolant in the reservoir keeps on rising. What could be the reason?
     
    tanveer702, Jun 11, 2019
    tanveer702, Jun 11, 2019
    #4
  7. Jun 11, 2019 #5
    Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Could be thermostat is sticking.
     
    Dave_in_AZ, Jun 11, 2019
    Dave_in_AZ, Jun 11, 2019
    #5
  8. Jun 11, 2019 #6
    Proxy

    Proxy Light Load Member

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    Sep 3, 2018
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    Rising after driving a while? if so it is probably just the thermal expansion of the coolant
     
    Proxy, Jun 11, 2019
    Proxy, Jun 11, 2019
    #6
  9. Jun 11, 2019 #7
    Rideandrepair

    Rideandrepair Road Train Member

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    Did you try to tighten clamp? The tank is an expansion tank. As stated it’s normal for antifreeze to expand when hot
     
    Rideandrepair, Jun 11, 2019
    Rideandrepair, Jun 11, 2019
    #7
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