My 1999 Ford Taurus is not blowing hot air through the heater or defrost what are some suggestions?
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.
Tagged with: block sealer • coolent • gasket • head gasket • heater core • thermostat
Filed under: Ford Taurus 1996-1999
it is
Heater hose is probally disconnected
First i would change the thermostat and use at least a 190 degree thermostat. then i would monitor the temp gage to see if its running normal or not.then try using your defrost, heater to see if there is any heat coming out at all.Usually when the heater core goes bad it leaks ant-freeze, so i would check and make sure you have no leaks. but it still could be bad and will have to replace it. I had a 78 firebird that leaked anti-freeze inside the car , when heater core went bad and got my carpet wet.
Have you tried replacing the thermostat? It is rather inexpensive to do so, and everytime my vehicle has not blown hot air, that was the problem.
Usually when there is a heater core problem you will leak antifreeze in the floorboard and sometime it will also blow up through the defrost onto your windshield.
Whenever you have overheating along with no heat inside, it’s almost always a thermostat stuck closed. This keeps the coolant from circulating (no heat), and allows the motor to overheat.
It’s an inexpensive fix if you do it yourself (about $5-10), and is pretty easy to do, although you will need a catch pan and plenty of rags to catch the coolant that will leak out when you open the thermostat housing. Don’t forget a new gasket!
If the engine is still misfiring, this will magnify the overheating problem, as the other 5 cylinders have to make up for the "dead" cylinder. Make sure this is fixed if not already.