heater hoses

2002 3.0 There are small hoses coming off separate T's on the heater hoses and going to the back side of the intake, down low close to the block. Anyone know what it is they are going to ? Is it OK to plug one off during summer ? I am assuming they are supply and return to warm something in cold...

Pulled into the driveway today, and noticed the smell of antifreeze and saw steam coming out from the right side of the hood.... Shut the engine off and popped the hood and it looked like the steam was coming from the area around the heater core hoses... Does that plastic fitting have a tendency...

Need to get the truck on the road ASAP. Background. I have a 2.3L 1989 Ranger that was overheating the last few days and it was dripping coolant where the heater hose meets the Tee near the valve cover (on the side of the Tee where the small diameter hose connects to the metal vacuum tube) --...