017 Volvo day cab Coolant Leak

Water pumps going south may do that. It's not the radiator, and if the clamps are tight, sounds like a job for "Mend-Tite",,

 

How much coolant is it losing?

I have used 3 gallon over the first 110k miles on my new truck. To me it’s normal considering my last truck used about the same amount..mostly attributed to cold weather.

 

So that's like a gallon every 4 months? I don't know, trucks I drove never used any coolant, unless something was wrong.

 

Supposedly it’s the silicone coolant hoses that cause the loss.

 

Wow! Great video. Silicone hoses will leak when cold, especially when new. The special constant tension SS clamps are suggested. The ones with a spring on them. Even they need to be tightened up after while to avoid developing a leak.

 

Mmm-hmm, hoses made by Peak Coolant? Here's an idea boss, make the hoses silicone and they will leak when cold, we'll sell even more coolant! Nice job, son, here, take the company Lexus home.

 

Cold leaks on hoses are definitely not just silicone. I honestly feel like I see more standard black rubber ones cold leaking. One major plus to the silicone ones is they don’t seem to cause corrosion between the hose and the fitting. It’s also possible that the radiator is the leak if it has bolted on tanks. I have seen those gaskets cold leak too on several trucks. I would suggest looking to see where the drips are when it’s cold and then fix or monitor the problem.