your car overheats and your heater blows cold??? sounds like air in the system or low coolant
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10-22-2010
your car overheats and your heater blows cold??? sounds like air in the system or low coolant
10-22-2010
My guess is bad thermostat. I had the same problem with my Venture, no heat and radiator cold to the touch.
I went through 8 of them to find a good one. Stant has a bad quality control problem. The 8th time I replaced it I bought three and put them in boiling water and only 1 out of the 3 was good!!!
10-22-2010
I am going to try and bypass the heater core and see if it still overheats. I have another heater core but looks like a major pita. I have already tried bleeding it and replaced the tstat.
Would a clogged heater core make the car overheat. I googled that question and get conflicting answers.
10-22-2010
Some older cars has a valve to allow coolant to flow into the heater core when the heater is turned on, so a clogged heater core wont cause you to overheat.Originally Posted by mhartwig
Did you bleed your cooling system by taking the radiator cap off and rev the car to about 1500 rpms and fill as the level goes down?
10-22-2010
I turned the bleeder screw to bleed it.
10-23-2010
Ok so I rented the compression tester from autzone. I pumped it up and noticed a few leaks. I put some gasket maker to seal the metal coolant bar to the engine.
Tried the compression tester again and didnt notice any more leaks. It kept compression. I drove it around and it over heated again. Bled the air out from the bleeder screw and drove some more. Kept bleeding air and it kept overheating.
I noticed the hoses I can pinch all the way down. They should be hard from the pressure right? The upper hose should be hot but it is not. Neither are the two heater hoses.
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