Pushing coolant

[Rockycoon75]

Yesterday when I got to Tulsa to deliver I could smell coolant. I opened the hood and seen it pushed some out of the overflow. I went home empty (about 100 miles) waiting to load today. I refilled it and washed everything off. I ran down to load today and couldn't smell anything. On the way back home it pushed out coolant again pulling the hills. Sitting there idling I ran a hose to a water bottle and it blows 1 bubble about every 4 or 5 seconds. When I shut the truck off it sounds and looks like a kid blowing bubbles through a straw in a cup for a few seconds.

It's a 871 that was demandated almost 2 yrs ago by Mr Hagg. It has around 400k on a overhaul. Never uses oil or lost any coolant before unless there was a leak. I have been noticing that the oil temp has been running a little higher than normal. Use to run close to 210° now running 215°-220°