View Poll Results: How hard is it to change, any secrets?
99 grand marquis
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heater core
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99 Grand Marquis heater core
Member
Joined: Sep 2008
Posts: 43
From: United States
I have a 1989 mgm and i had to replace the core.The heater core is in the passenger side on the bottom ofdash board. All you have to do is follow the 2 heater hose that go to the firewall from the engine.It is about a 4 to 7 hour job it depends how firmiliar you are. I would do some researchfirst to make myself firmiliar before i would attack it.It isa square boxin the bottom of the dash board on the passenger side.Good luck[img]smileys/smiley3.gif[/img] Edited by: pdman
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