6.4 coolant leak.
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From: Salem, Oregon
6.4 coolant leak.
2008 6.4PSD with 35,000 miles. Notice a very small amount of coolant on the shop floor after the truck sits for a couple days. Looks to me like it is coming from the bottom of the top radiator hose where it connects to the block/water pump. Is this a common place to leak? The leak is very small as I cannot see a drop in coolant over a two week period. Any experience or suggestions on this?
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From: Frederick, MD
If you look through the drivers side wheel well at the EGR coolers and see white splatter then it is most light the upper radiator hose.
New design hose has a white end nearest the motor. It now has a double 0-ring design.
It is a common failure due to the single o-ring.
I would shine a light at it to ensure that is the leak.
Other common leak point is the radiator seams. So look all along that for evidence as well.
New design hose has a white end nearest the motor. It now has a double 0-ring design.
It is a common failure due to the single o-ring.
I would shine a light at it to ensure that is the leak.
Other common leak point is the radiator seams. So look all along that for evidence as well.
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From: Salem, Oregon
Thanks Senix, that is helpful. First thing I looked at was radiator tanks/seams. Couldn't see anything there. It almost seems to be a cold leak when it sits, as it is always dry when I park it. Will get the hose for replacement. Thanks again.
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