The heater core is inside the Hvac housing, under the dash.
you have to remove the dash
This process could take up to 3 hours. The Heater core is best flushed if you are having problems with flow. Is this an option? F. Garay
Seldom is a heater core repairable. Replace the heater core with a new one.
I have not received an answer to my question, "How do you replace a heater core in a 1995 Plymouth Voyager SE? When can I expect an answer? Thank you!!! nellkat60
Behind the firewall on the driver's side of the dash.. You can access it under the dash in front of the driver...
Low coolant? Bad thermostat? Heater core plugged, restricted, or airbound? ============================================================== Good answers by original poster. I would recommend replacing the t-stat first. Its pretty straightforward. If that doesnt solve your problem, our 89 acclaim's have a heater valve (it shuts off coolant flow to the heater core when the a/c is activated to increase the efficiency of the a/c) by the firewall that can stick or lose vacuum (broken vacuum line). Check that next. Lastly, I would take the lines off the heater core and run a garden hose up to it. This will "backflush" any accumulated crud out of the heater core. I do this to my Acclaim every fall and cant believe the crap that comes out! ============================================================== When the heater went out in my car, I went in and found out that it was the heater control valve. Check it out.
Drain the water from your 1990 Chevy Corsica cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
.the heater core is behind the dash .
.the heater core is behind the dash .
Have you flushed the heater core?
comes out inside . remove glovebox and go in that way . about one hour .
1999 2.4