My Bronco rolled over 300000 feb 2012, the water pump was replaced in 2011, the radiator is 9 yrs old, and the bottom hose for the radiator was replaced last month cause the antifreeze was leaking, the heater core was replaced in October 2012. whats causing my bronco to overheat?
Could be rad.thermostat stuck close,
SOURCE: 88 Bronco ii Coolant not circulating
Good Day,
Sounds like the thermostat is working properly, the only other cause for the valve/lifter noise could be the oil pump is not pumping enough oil up to the top of the motor. I suggest doing an oil change(if you haven'y aleready), be sure to flush several quarts through, after sitting for 5 years I'm sure the old oil is pretty sludgy, this well help rule out this possibilty. As far as the water pump goes, It either works or doesn't typically when they are on there way out the will leak from the gaskets. A bad head gasket would cause white smoke form the exhaust as coolant get's into the oil and is burned off, so I don;t hink this is the problem.
Here's a start for you, hope this helps and good luck
SOURCE: my 2002 ford taurus has
I have the same vehicle...check to see that the heater control valve is opening...usually mounted on the fire wall and has about a 5/8" inch hose that come from the T-stat....it esentially bypasses the heater core when the heat is not selected. The hoses going through the fire wall on the left (passenger) side of the vehicle are strictly for the heater - it "heat" is selected and those hoses are cold - based on what you've already done, the next conclusion would be the heater control valve...could be something as simple as a disconnected vacuum line.
Good Luck,
Mike...
SOURCE: heater not heating hot enough. heater core not
Good place to start is a cooling system flush and thermostat replaced.
SOURCE: There is no cabin heat in 2000 ford focus. The
Remove both raidiator hoses and try flushing the the radiator matrix out with fresh water refit them and run the car topping up the coolant about half a litre every minute, do this with the small pipe at the resovoir disconnected to allow it to bleed up properly,once your sure all the air is out the system put the cap and the pipe on and let it heat up, you now want to find the feed pipe to your heater matrix and disconnect it to make sure the matrix is recieving a warm and free flowing supply of water if so its your heater matrix thats blocked replace it if not then switch the engine off and locate the feed to your water pump and the pipe leaving the water pump.squeeze the pipe leaving the water pump together as hard as possible and get someone to start the engine.The flow from the water pump should push your hand apart or at least move it with some force, if not then strip and inspect the pump replace as req.Failing this then its check the thermostats time( if fitted ) Remove them submerse them in an open kettle with a thermostat and check which temp that they open at (usually around 85 deg centigrade)replace as req.If all of this is working and i doubt that you will get this far without finding something then its rip all the pipes off and check for blockages time, great fun i think not but i hope this was helpful and wish you the best of luck! b sure to give me a vote if this is helpful,thanks
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