2006 international 4300 overheating on highway

Discussion in 'International Forum' started by Boxtrucker, Mar 1, 2021.

  1. Boxtrucker

    Boxtrucker Bobtail Member

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    Mar 1, 2021
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    I’ve seen this come up in different forums across the internet - other than fan clutch, water pump
    Radiator clogged externally or internally -

    has anybody had different cure?

    truck runs cool all day up to 50 mph -
    On the highway at speed 60-65 starts to creep up - have to pull over at 115 and let it cool down -
    Doesn’t happen right off the bat- takes 30 minutes of highway driving to start getting this way - and once it does just doesn’t recover -
    Have to keep pulling over every 15 minutes
     
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  3. Boxtrucker

    Boxtrucker Bobtail Member

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    Mar 1, 2021
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  4. Dave1837

    Dave1837 Medium Load Member

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    115 isn't even operating temperature, do any lights come on telling you to shut the truck down?
     
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  5. ChuckMartel

    ChuckMartel Light Load Member

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    Jan 22, 2021
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    Think he means 115 Celsius, which would be around 240F.

    Have you replaced or repaired any of those things you listed? Does your fan cut in at 100C?
     
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  6. Dave1837

    Dave1837 Medium Load Member

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    That never even crossed my mind lol
     
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  7. ChuckMartel

    ChuckMartel Light Load Member

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    Jan 22, 2021
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    I know right, even up here not many people use Celsius for engine temp so I throws people.

    as for the issue, I’d start with removing your condenser and carefully pressure washing your rad out.
     
  8. Boxtrucker

    Boxtrucker Bobtail Member

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    Mar 1, 2021
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    Hello gents - I mis typed .... I meant 215 f

    radiator and condenser has been cleaned -
    Some improvement -

    as I continue to hunt it down ... I have
    Discovered a leak which is dripping oil
    Down the passenger side of the engine ...
    Possibly even from exhaust manifold gasket
    Near cylinder number two -

    is it possible to have a head gasket leak oil there ?
     
  9. Boxtrucker

    Boxtrucker Bobtail Member

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    Mar 1, 2021
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  10. Boxtrucker

    Boxtrucker Bobtail Member

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    Mar 1, 2021
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    now what do we make of this oil leak-
    Around the head gasket area / exhaust manifold ... not the cover higher up

    Head gasket leaking ? Oil in exhaust leaking
    Out of exhaust gasket? Bad valve seals ?
     
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