Seems normal

[Randomrunner12]

Hey family,

to me this seems normal but wanted to ask yall since it’s happened on my last 3 Cummins trucks.

weather gets super cold and then I start to have coolant leaking out of my overflow hose where it connects to the radiator and no where else.

story, last week it got into -temps with wind chill. Truck sat for 3 days plugged in and then when I went to leave found coolant puddle under right front passenger side and coolant trail from overflow hose down. Dried off and monitored for a couple days. No more leaking since we were above freezing.
Drove to work last night and when I went to leave I checked and found a couple drips again from the hose.

in the past I’ve just put a hose clamp there because I’ve never trusted that tube just blowing off. Is this normal for these trucks?

no symptoms of a blown head gasket or anything so that’s not on my radar.

 

[petersonj]

It seems like a lot of these trucks didn't use a hose clamp at that location. It needs one. Normal thermal expansion / contraction is inviting a leak. The best hose clamp to use is a constant tension spring clamp - not a screw type.

- John

 

[Randomrunner12]

It seems like a lot of these trucks didn't use a hose clamp at that location. It needs one. Normal thermal expansion / contraction is inviting a leak. These best hose clamp to use is a constant tension spring clamp - not a screw type.

- John

Starting to notice that. I found the clamp your talking about so I get that in the morning after work and be good to go.