Forum Discussion

want-a-be's avatar
want-a-be
Explorer
Sep 06, 2017

Freightliner Radiator

We have a 380HP on a Freightliner chassis. The top of the radiator is clear and is only half full, the over flow tank is showing full cold. Why would the top of the radiator only be half full? If it needed water wouldn't the over flow tank be empty?
Thanks for all comments!
Class A
  • want-a-be's avatar
    want-a-be
    Explorer
    Sep 06, 2017
    MountainAir05 wrote:
    If the radiator cap is bad then it might not pull water from overflow tank. Did you check it hot or cold. But I would think that you might be running warm/hot on the gauge.


    I check it cold and the RV has never ran hot.
  • wolfe10's avatar
    wolfe10
    Explorer
    Sep 06, 2017
    Actually, if there is enough air in the radiator/cooling system, it will absorb the increased volume as coolant heats.
  • MountainAir05's avatar
    MountainAir05
    Explorer II
    Sep 06, 2017
    If the radiator cap is bad then it might not pull water from overflow tank. Did you check it hot or cold. But I would think that you might be running warm/hot on the gauge.

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