1993 mercury grand marquis

95

Asked by Dec 13, 2011 at 10:25 AM about the 1993 Mercury Grand Marquis 4 Dr GS Sedan

Question type: Maintenance & Repair

why is my passenger side back seat on the floor fill up with water when it rains?

12 Answers

155

I found and FIXED this problem on my '94 CV. Its water from the condensate/cowel drain where it passes thru the firewall. Its a little tiny "cows tongue" drip drain and the water is dripping inside thru an opening under the drain. The plenum box mounting gasket (interior side of firewall) shrinks over time and opens a path for the water. You have to remove the bolts from the back half of the RF inner fender liner. Pull it out and prop it open with a block of wood or something to gain access to the firewall. Find this little drain and you can squeeze some silicone sealant in under the drain and the water will stop. NOW you have to remove the RF seat and interior trim, lift up all the carpet and get it dry or you will never keep the windows clear in the winter. Oh and the floor boards will rust out. It gets to the rear because the carpet undermat acts like a wick and moves it all the way from behind the heater box to the foot well in the back, the lowest point.

2 out of 2 people think this is helpful.
Best Answer
95

ok...i do have the problem with the windows right now...um do i need any special tools? if so plz explain...do i have to take the dash out? plz explain the directions more cuz i need to get it done in my garage in like one day...the right way

2 out of 2 people think this is helpful.
155

The actual repair is all done from the right front wheel area after you remove the wheel and pull out the liner. Nothing to do with the dash or the heater box. The hard part is the removal of the passenger seat to lift up and dry out the carpet and floor board.

2 out of 2 people think this is helpful.
95

where is the hole exaclty and what kind of caulk should i use

155

read on - http://townhall-talk.edmunds.com/direct/view/.f10f125/0

95

will it still be the same issue for my 93 becuz all i can find is that its for a 98-02 ....and its about the water coming from under the wiper moters about a gasket....is that what you are talking about?

155

same stuff - if your carpet is wet on the drivers side, look at the wiper try. If your carpet is wet on the passenger side and pooling in the rear, its the cowl drain at the firewall, behind the RF wheel well.

95

i will work on it today ill keep you posted... thanks for your help man

95

pluged it up :D so now to wait for some rain

1 out of 1 people think this is helpful.
95

um raining today and its filling up again.....help?

95

bringing it into the shop later today-told them too keep it until they fix it permanatly

95

leaking from the windsheild....new windshield we will see if it leaks

Your Answer

Add photo

Related Questions

  • Engine replacement - '93 Mercury Grand Marquis LS 4D Sedan 3 answers

    How much would it cost to replace the engine - (4.6L V8 EFI) - in a '93 Mercury Grand Marquis LS 4D Sedan?

    1993 Mercury Grand Marquis 4 Dr LS Sedan

    -

    Maintenance & Repair

  • keycode for grand marquis 4 answers

    i own a 1993 mercury grand marquis and need a physical key made for the drivers side door. where can i get the "keycode" for my car to have the key made?

    1993 Mercury Grand Marquis 4 Dr LS Sedan

    -

    Maintenance & Repair

  • location of cylinder head temperature sensor 2007 mercury grand marquis ls 1 answer

    where is the cylinder head temperature sensor located on a 2007 mercury grand marquis ls. Diagram if available.

    2007 Mercury Grand Marquis LS Premium

    -

    Maintenance & Repair

  • installing fan belt in a grand marquis 2000 1 answer

    replacing the fan belt in ford grand marquis 2000

    2000 Mercury Grand Marquis LS

    -

    Maintenance & Repair

  • 1993 Mercury Grand Marquis Restoration 3 answers

    Ok. So I just bought a 1993 Mercury Grand Marquis for my college auto classes. Now I want to remove the stock dash board and replace it with a 1993 Crown Victoria. I also would like any help I can g...

    1993 Mercury Grand Marquis 4 Dr LS Sedan

    -

    Car Customization

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 2,244 nationwide Grand Marquis listings starting at $1,995.

ZIP:

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 4,900
#2 kbro
kbro
Reputation 1,960
#3 Js08016
Js08016
Reputation 1,480
View All

Related Models For Sale

Used Ford Crown Victoria
7 Great Deals out of 1,506 listings starting at $2,900
Used Lincoln Town Car
45 Great Deals out of 2,149 listings starting at $1,700
Used Chevrolet Impala
920 Great Deals out of 36,054 listings starting at $1,500
Used Ford F-150
3,362 Great Deals out of 205,061 listings starting at $1,273
Used Chevrolet Caprice
175 listings starting at $10,900
Used Ford Mustang
726 Great Deals out of 38,165 listings starting at $1,750
Used Ford Taurus
375 Great Deals out of 22,133 listings starting at $1,499
Used Cadillac DeVille
1,983 listings starting at $1,600
Used Buick LeSabre
9 Great Deals out of 2,383 listings starting at $1,768

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
3 Great Deals out of 41 listings starting at $5,999
2010 Mercury Grand Marquis For Sale
100 listings starting at $2,999
2009 Mercury Grand Marquis For Sale
120 listings starting at $3,495
2008 Mercury Grand Marquis For Sale
7 Great Deals out of 171 listings starting at $2,900
2007 Mercury Grand Marquis For Sale
11 Great Deals out of 169 listings starting at $2,200