Red River T

After driving home from work with air only slightly warmer than the outside temp, I let it cool off then removed the rad cap (it was full up to the cap) and slowly drove up to the overpass again, pulled up the incline and let it run a minute or so, revving it up some (had the heat on full). When I backed down and looked in the radiator, the level was down several inches. I put maybe a quart & a half in to fill it up. The heat felt a little warmer, maybe. Probably was just wishful thinking.

The heat was working OK prior to me draining the coolant. (I drained it from through the draincock in the bottom of the radiator.) The one problem I had was when I drove to work, the last 6 or 7 miles at 65, then a half mile at 45, then when I turned down our drive and dropped to 10-15 mph, the air would get cold. That was the only place I noticed it, of course I very rarely drove 10 mph anywhere else.

I got this thing at the end of April, so I haven't used the heat much, but I'm pretty sure I used it in the mornings for a couple of weeks then, and have a little this fall. I never noticed any problem before.

dave1123

If the hose from the thermostat housing is going to the lower heater pipe, it should bleed itself. coolant coming in at the bottom of the heater core allows the air to exit the top and go to the water pump.

Red River T

The hoses through the firewall are side-by-side. I removed the hose from the t'stat housing and held it up as straight as I could and poured a little water down it. No coolant leaked out when I took it off and I couldn't see any in the nipple on the t'stat housing. I didn't get much in there before I noticed coolant running out of the nipple. Still don't have heat (well same as before, slightly warmer than outside air, very slightly).