1998 Mercury Sable plugged heater core

1998 MERCURY SABLE
117,000 MILES • 6 CYL • 2WD • AUTOMATIC
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Would Draino or Baking Soda or some other liquid help? Would hooking up a Water hose direct w/a adaptor work?

How do I remove the heater core and replace it if I can't get it unplugged?
Sep 16, 2008 at 7:36 AM
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2CARPRO JACK
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That isnt really a DIY project, the entire dash has to come out of the car to get to the heater core.DO NOT hook a hose directly to it, this could blow the core out and then replacing it will be necessary.Have you tried having a radiator shop backflush the system? you can use a hose, but not full pressure, and try going both directions with it. I wouldnt use too harsh of a chemical there may be o'rings sealing the tubes.Simple Green may be worth a try.
Sep 16, 2008 at 8:00 AM