overheating what else is left

[mhartwig]

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.

[Whiplash Performance]

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.

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.

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?

[mhartwig]

I turned the bleeder screw to bleed it.

[mhartwig]

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.