Can a bad heatercore cause antifreeze to come out overflow jug. And heat go off and on.
Take it to a mechanic and say "will you fix the heater core?"
How do you replace a heater core in a 1998 ford expedition?"
On a 1998 Ford Ranger : The evaporator core for the air conditioning system is inside the plastic case ( that also holds the heater core ) located behind and below the glove compartment in the dash on the passenger side
How do you replace a heater core in a 1998 Ford Expedition?"
Actually , the heater core doesn't have a drain
in the dash behind the glove compartment
HEATER WISE? YOUR HEATER CORE MAY BE BLOCKED
heater core hoses not hot
The Heater Core will be located behind the dash. Hope that Helps.
I had this problem before on a ranger you have to pull the dash board out and it will be right there.
Replace it with a new one.
It sounds like you have a bad heater core. I would recommend replacing it.