Check your coolant level first. Post your findings.AnswerHeather core could be blocked or bad thermostat.
I have owned a 1990 for 7 years and my mom owns a 1992 (7 years too) and I just purchased a 1994 and every one of them have no heat. I gets warm in the winter but not hot.
I have changed the thermostat many times, flushed the rad, mom changed the heater core but we still have no heat.
I don't no if it's just the MPV or just our vans.
The heater core in a 1994 Mazda MPV is under the dash on the passenger side. The dash has to be taken apart to change out the heater core.
I have the 1994 Mazda 626 LX and it has it
The heater core is blocked. The heater core works of circulation of the radiator fluid, while the A/C works off ciruclation of the freon.
It either works or it doesnt
there is a short in the wire connecting the blower motor or it could be your voltage regulator sending not a constant current to the blower.
Yes the 1994 Mazda Protege is a OBD 1 port
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Its either a bad heater core or a clogged one. They are very expensive.
You have to remove the dash and cowling underhood to remove the heater case. Then you would need to disassemble the heater case.
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