Sorry if I offend anyone but I must have read 50 posts on burping a cooling system, but now I am stumped. I just replaced the water pump on my 1999 Cherokee Sport 4.0. I followed all the instructions for burping the system especially the one with leaving the Tstat cap off but then all of the sudden Coolant started pouring out the cap hole when the jeep hit operating temp. So I shut it down, refilled it and also poured coolant into the heater intake hose. Took it for a drive and ran the heater. The air coming out never got hot and it started to overheat up to 230 so I took it home and when it idled it went back to 210. I let it idle for another 10 min and it stayed there at 210. When I felt the upper radiator hose it was hard as a rock and hot. The heater intake hose(out of tstat) was really hot but the outlet hose to the WP was cold. Any suggestions of what to do? My buddy said to pull the outlet hose and pour coolant through that to fill everything. The Tstat is new and was installed with the little ball pointing up, I feel like the Tstat isn't opening. Will air in the system cause that to happen? Any help ASAP would really be appreciated.
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