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The truck has a coolant leak on the engine side of th bypass hose from the waterpump to the engine. It only leaks when it is cold, usually early morning. have replaced it twice.

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  • JUDY RIGG
    JUDY RIGG Apr 08, 2015

    Not sure why it is a 1, As I asked the question I thought it was quite a bit helpful.

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Put a pressure tester on the cooling system when cold. Carefully observe the leak while someone else pressures up the system. You can also have a shop add leak detection dye to the system and then have them check it with a UV light to define the leak.

Posted on Apr 09, 2015

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Could be the leak isn't in the hose, but is in the engine where the hose connects...

Posted on Apr 07, 2015

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If the line was correctly installed it maybe packing leak from the water pump or a water line connecting manifold at the engine side.

Posted on May 21, 2016

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