Question about 1994 Mercury Tracer
I have replaced the coolant, thermostat, and radiator cap. Still no heat inside the car. Thought I might have to replace the heater core, but I don't understand why the temp. gauge (which I believe is okay) reads cold. Hoses to and from the core are relatively hot. There are no external coolant leaks, nor any apparent internal problems with the head gasket. I heard replacing the heater core is a nasty job, so before I do that, I was wondering if there could be some other cause for no heat. Any suggestions?
Did you run engine from cold, with heater (not defrost) on , rad cap off & wait for rad fan to come on 2 or 3 times before you put rad cap back on? Rev engine slightly and hold it there for 30sec. to 1 min. every once in a while while doing this to aid in increasing flow & remove air locks. If both hoses in & out are hot to touch, then you should be getting heat, and I would start looking at blend/air door etc on heater to make sure it's going to it's proper position.
Posted on Jan 02, 2009
If the temp. gauge on the instrument panel is OK, test and eventually replace the temperature sender, and check the wiring to temperature sender.
Replacing the whole heater core is not a simple operation, test sender and wiring first.
Posted on Jan 02, 2009
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Posted on Jan 02, 2017
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