2001 Grand Marguis heater core replacement

2 messages, Last post on Jan 17, 2009 at 11:34 PM

#1 of 2 2001 Grand Marguis heater core replacement by robertsgt40 Jan 15, 2009 (6:11 am)
My 2001 needs a heater core replacement(leaks bad) I replaced it 2yrs ago and it's rotted out again. Is there a certain anti-freeze to use to prevent corrosion? I also am considering useing distilled water for 50/50 blend. Any thoughts??? Replies to this message: joesmith2 (Jan 17, 2009 11:34 pm)
#2 of 2 Re: 2001 Grand Marguis heater core replacement [robertsgt40] by joesmith2 Jan 17, 2009 (11:34 pm)
Replying to: robertsgt40 (Jan 15, 2009 6:11 am) My sister and I both had 96 GMs, and we both had to replace the heater core. But we never had to replace it again. We just used the "pre-mix" anti-freeze. I don't know why you would have gotten a bad core. Does it have the stock thermostat? Maybe a higher thermostat could decrease the heater core lifespan? I'm grasping at straws, but I don't think your replacement heater core should have failed after 2 years.