88 grand marquis overheating and leaking water

Asked by Mar 01, 2017 at 06:33 PM about the 1988 Mercury Grand Marquis

Question type: Maintenance & Repair

My 88 mercury grand marquis is overheating and
leaking water from the passenger side under the
car around the front passenger side door. What is
the problem I can't figure this out?  Please help

10 Answers

20,830

Sounds like the heater core is bad.

78,025

Yes I agree, and running low on coolant.

I appreciate the help. But out of curiosity how did you come up with that answer?

78,025

The location of the leak. But we should ask do you smell anti freeze inside the vehicle?

21,555

Also check heater core hoses, they old enough to be bad.

20,830

The heater core is located under the dash on the passengers side so if it starts to leak anti freeze will go onto passenger side floor.

20,830

And that is a good question from Rowefast do you smell anti freeze or is it just plain water that you see on passenger side floor ?

No antifreeze in the car period just water. I don't put antifreeze in the car

78,025

You should run a 50/50 mix. It raises the boiling point of the coolant and cools the motor much better. Just check your heater hoses running to the heater core, replace the heater core if necessary.

78,025

Plus the anti freeze is a rust prohibitor.

Your Answer

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 9 nationwide Grand Marquis listings and the tools to find you a great deal.

ZIP:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,880
  • #2
    kbro
    Reputation
    2,190
  • #3
    Js08016
    Reputation
    1,940
View All

Related Models For Sale

Used Lincoln Town Car
16 listings starting at $5,495
Used Ford Crown Victoria
8 listings starting at $5,995
Used Ford F-150
611 Great Deals out of 8,959 listings starting at $1,995
Used Dodge Charger
64 Great Deals out of 730 listings starting at $1,600
Used Ford Mustang
5 Great Deals out of 1,036 listings starting at $3,995
Used Cadillac DeVille
15 listings starting at $3,995
Used Toyota Camry
79 Great Deals out of 2,182 listings starting at $1,900
Used Lincoln Continental
48 listings starting at $52,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.