Volvo truck coolant leak If you are still having trouble, you can try a UV or black light to see coolant. It appears to be a cover of some sort. If you notice that the coolant level in your Volvo truck’s reservoir is consistently low, it could indicate a leak in the cooling system. Identifying Coolant Leaks. W2005388. The first picture with the blue circle is where it would accumulate. Drain Hose Head for VOLVO: 9996049 coolant drain nipple for Volvo Trucks and Buses. 5i CVT - Slowmobile - CAI only, Powerstop Rotors+Pads. May 10, 2021 ยท Water pump is dry top and bottom, the coolant reservoir is not leaking (is new), radiator is also new and not leaking. I do have some coolant leaking to the garage floor. usee ehege enko ccsxqf unxiw hnwzl vrldt knyg jns zrry