ExploreMinnesota
Well-Known Member
- Joined
- February 15, 2000
- Messages
- 100
- Reaction score
- 0
- City, State
- Pine Island, MN
- Year, Model & Trim Level
- 2008 Eddie Bauer 4x4
I've had a problem getting heat for some time now, and with the temp outside going below zero now, it's really becoming a problem. The engine temp has been running hotter and hotter and now has begun overheating.
What I have already done is, new t-stat, new heater-core, new radiator and cap, new hoses, new water pump, and of course flushed out the engine block as best I could when water pump was off. There seems to be no restrictions to water flow, when I use a water hose to flush it out, yet it appears that the water is not flowing through the system.
Changed the t-stat again, and yes, it is installed correctly, facing the right direction and the small bleeder hole is at the top. There seems to be no water flowing through the system. It should flow throug the heater core even if the t-stat is closed, but the heater never heats up and the hoses stay cold. I detatched the heater hose from the exit side of the heater core while the engin was running, and barely a trickle was coming out. I shut the engine off and using my hand as a seal around the hose, I blew into the hose. A full stream of water came gushing out of the heater core . . . water flows easily so it seems. That's when I decided to change the water pump . . . but that did not fix it.
As it stands now, water boils out of the overflow after driving 4 or 5 miles. The upper radiator hose is warm and under pressure, but not hot. Heater hoses are cold. I shut the engine off and felt the radiator . . . upper 4 or 5 inches is hot, below that feels cold . . . ice cold, but it is still bubbling out of the overflow . . . with most of the radiator feeling ice cold. The fluid level was as full as I could get it. It took over 2 gallons and I filled it with the upper radiator hose off until water was flowing out of it. Then I attached the hose and topped it off.
It seems like I've changed everything that could possibly be the problem, but the problem still exists. Anyone have any ideas?
What I have already done is, new t-stat, new heater-core, new radiator and cap, new hoses, new water pump, and of course flushed out the engine block as best I could when water pump was off. There seems to be no restrictions to water flow, when I use a water hose to flush it out, yet it appears that the water is not flowing through the system.
Changed the t-stat again, and yes, it is installed correctly, facing the right direction and the small bleeder hole is at the top. There seems to be no water flowing through the system. It should flow throug the heater core even if the t-stat is closed, but the heater never heats up and the hoses stay cold. I detatched the heater hose from the exit side of the heater core while the engin was running, and barely a trickle was coming out. I shut the engine off and using my hand as a seal around the hose, I blew into the hose. A full stream of water came gushing out of the heater core . . . water flows easily so it seems. That's when I decided to change the water pump . . . but that did not fix it.
As it stands now, water boils out of the overflow after driving 4 or 5 miles. The upper radiator hose is warm and under pressure, but not hot. Heater hoses are cold. I shut the engine off and felt the radiator . . . upper 4 or 5 inches is hot, below that feels cold . . . ice cold, but it is still bubbling out of the overflow . . . with most of the radiator feeling ice cold. The fluid level was as full as I could get it. It took over 2 gallons and I filled it with the upper radiator hose off until water was flowing out of it. Then I attached the hose and topped it off.
It seems like I've changed everything that could possibly be the problem, but the problem still exists. Anyone have any ideas?