IH POWER
ALL MOTOR!
Was doing a routine check on my 6.9 today and took the radiator cap off. Seen some white foamy bubbles in my radiator. It was a little low on antifreeze. But anyways I know you guys are going to automatically say head gasket. But I started the truck and put my hand over the radiator cap hole for 30 seconds and there wasnt really any pressure at all. Im running strait water, and theres no signs of oil in it. And my oil isnt bubbly. Its nice and black. So what really could be causing these bubbles??
