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2001 Grand Marguis heater core replacement

9 messages,  Last post on Oct 10, 2012 at 11:49 AM

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What is this discussion about? Ford Crown Victoria, Mercury Grand Marquis, Sedan

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#1 of 9 2001 Grand Marguis heater core replacement by robertsgt40

Jan 15, 2009 (7:11 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???

#2 of 9 Re: 2001 Grand Marguis heater core replacement [robertsgt40] by joesmith2

Jan 18, 2009 (12:34 am)

Replying to: robertsgt40 (Jan 15, 2009 7:11 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.

#3 of 9 1993 Mercury Grand Marquis air bag light flashing by greenthumb1

Jun 23, 2010 (8:37 pm)

The air bag light is flashing 5 times then 1 time. What does this mean?

#4 of 9 1993 Mercury Grand Marquis sluggish at takeoff. by greenthumb1

Jun 23, 2010 (9:02 pm)

1993 Mercury with 120K miles has poor acceleration [sputters] at take off for the first 1/2 mile then smooths out. Also sluggish after warmed up at start up on hot days >85 degree. The check engine light comes on intermittently after engine is warmed and on a load. I have changed the fuel filter, EGR valve, plugs and wires, air temp sensor, water temp sensor with no improvement. What could be the problem?

#5 of 9 Re: 1993 Mercury Grand Marquis sluggish at takeoff. [greenthumb1] by euphonium

Jun 24, 2010 (9:38 am)

Replying to: greenthumb1 (Jun 23, 2010 9:02 pm)
Adjacent to the air filter is a sensor. I believe it is called "Mass Airflow Sensor". It can be cleaned, but if you're going to keep the car, change it.

#6 of 9 Re: 1993 Mercury Grand Marquis sluggish at takeoff. [euphonium] by greenthumb1

Jul 03, 2010 (8:11 am)

Replying to: euphonium (Jun 24, 2010 9:38 am)
Thanks for the suggestion. I cleaned the Mass Airflow Sensor with electronic connection cleaner and it corrected the problem.
thanks euphonium

#7 of 9 Re: 1993 Mercury Grand Marquis sluggish at takeoff. [greenthumb1] by euphonium

Jul 03, 2010 (11:40 am)

Replying to: greenthumb1 (Jul 03, 2010 8:11 am)
Good for you & I'm glad it worked.

#8 of 9 Re: 1993 Mercury Grand Marquis air bag light flashing [greenthumb1] by jlazz

Oct 10, 2012 (11:46 am)

Replying to: greenthumb1 (Jun 23, 2010 8:37 pm)
Did you find out what causes flashing blinking light 5x's then 1 time ???

#9 of 9 1993 grand marquis airbag blinking light by jlazz

Oct 10, 2012 (11:49 am)

What causes 5 blinking lights then followed by on repeatly?

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