When I bought the car it was over heating. The service engine light was on and cylinder 1 was miss fireing. I had did everything else so I put some block sealer in the coolent and it has ran hot or cut out since. So it was a head gasket but I’m wondering if the sealer might have clogged up the heater core. What are some other things to check or to do before I replace it or how do I know if it is the heater core?
And I have alredy changed the thermostat twice.

Where is the heater core located on my car? Need to know so I can Replace it with a new one.

I’m replacing the heater core in my wife’s 2000 Ford taurus 4 door sedan with a 3.0 liter single overhead valve motor. I’ve never done one before and would like to know how much work is entailed. What all has to come out to do this job

I need to know how to acsess the heater core in my ford taurus so that I can replace it with a new one.

I have an 86 Oldsmobile in my yard that I want to work on. Problem is that it has a blown head gasket, no fan, rusted cylinder’s, and a busted window. My mom gave me her 1991 ford taurus, all it needs is a heater core and a new front suspension, other than that I got it running good. So should I still try and get the Oldsmobile running or stick with the taurus.

P.S. I am only 15 so I don’t have much money.

My friends have a 2000 Ford Taurus. They have not had heat for a while now. They have changed the thermostat, flushed the heater core and they know that everything is going through the heater core properly. I have the suspicion that the temperature control door inside the heater/air-conditioning box is stuck to the A/C setting. Does anyone know how to manually adjust this to make it be on the heat setting?

Also, could my mechanic have damaged it (accidentally or on purpose) when replacing my blower motor? And, how long would it take me to replace my heater core?