99 Mercury Grand Marquis LS cooling fan isn't working

Asked by MerrieK Jul 23, 2017 at 09:08 PM about the 1999 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

One night I started my 99 Mercury Grand Marquis
and the idle was very high and wouldn't kick down.
I drove home a few blocks and forgot until the next
day when it didn't the same thing. The third day I
was driving to the gas station less than a mile and
when I got there water was spewing from the
radiator. I have noticed that the fan never comes
on, but now the battery is dead too. Would all of
those things be caused by the fan not working?
That's a very high idle, overheating, and now a dead
battery.

3 Answers
5,415

Trippmeister answered 7 years ago

Could be your serpentine (fan) belt. It drives the alternator and water pump. The fan could be the fan relay, or the fan motor itself. Replace the relay first. Or the fan thermostat. Check that belt! The idle could be the Idle Air Control Valve. May need cleaning or replacing.

1 people found this helpful.
Mark helpful

MerrieK answered 7 years ago

So the belt would have to be broken or? My friend was looking under the hood right after the first time it overheated and he said somethng about the pully going weeble wobble instead of steady.

Mark helpful
5,415

Trippmeister answered 7 years ago

Your belt tentioner could be bad, and maybe the belt slipped orr. You had better replace the belt and tentioner before driving it even a mile. It's not a very hard job, one needs a 1/2 drive socket handle to release the pressure, and the new belt has to be threaded as per the diagram under the hood. It also has to be seated correctly on each pulley. A more remote possibility, is that a pulley on the water pump, or power steering pump has come loose.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • 99 Mercury Grand Marquis LS cooling fan isn't working 3 Answers

    One night I started my 99 Mercury Grand Marquis and the idle was very high and wouldn't kick down. I drove home a few blocks and forgot until the next day when it didn't the same thing. The third d...

    1999 Mercury Grand Marquis 4 Dr LS Sedan

    -

    Maintenance & Repair

  • 99 Mercury Grand Marquis 2 Answers

    So I've had a a 99 Mercury Marquis sitting in my garage for about 2 years, I've been trying to get it to run lately. So I've changed the fuel pump, cleaned out the tank and put it back on and I got...

    1999 Mercury Grand Marquis 4 Dr LS Sedan

    -

    Maintenance & Repair

  • Why 2006 mercury grand marquis gs's control cruise isn't working 3 Answers

    It's my first time owner of that car and the control cruise is not working wondering where can i find the problem at

    2006 Mercury Grand Marquis GS

    -

    Maintenance & Repair

  • 1991 Mercury Grand Marquis LS 2 Answers

    Anyone know where I can locate a listing of the Air Bag light trouble codes for my 1991 Merc Grand Marquis LS .specifically I am getting a 1( 2 sec. pause ) 5, followed by 5 pause 5 pause 5 pause. ...

    1991 Mercury Grand Marquis LS Sedan RWD

    -

    Maintenance & Repair

  • 2000 Mercury Grand Marquis Ls 2 Answers

    My fan went out. My windows keep fogging up. And when I turn on defrost, steam came from the vent. i smell antifreeze

    2000 Mercury Grand Marquis LS

    -

    Maintenance & Repair

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 313 nationwide Grand Marquis listings starting at $990.

ZIP:

Own this car?

Share your experience with others.

1999 Mercury Grand Marquis

Write a car review

Review another car

Shortcuts

Search Mercury Grand Marquis Questions

CarGurus Experts

  • #1
    Tracy Hooks
    Reputation
    9,850
  • #2
    Trippmeister
    Reputation
    5,140
  • #3
    Bob Beaman
    Reputation
    3,880
View All

Know more, shop wisely

Search

Related Models For Sale

Used Lincoln Town Car
18 Great Deals out of 419 listings starting at $1,050
Used Ford Crown Victoria
4 Great Deals out of 139 listings starting at $3,434
Used Chevrolet Impala
226 Great Deals out of 3,876 listings starting at $1,551
Used Ford F-150
6,392 Great Deals out of 167,087 listings starting at $1,199
Used Lexus LS
99 Great Deals out of 1,531 listings starting at $2,300
Used Ford Mustang
962 Great Deals out of 19,565 listings starting at $1,500
Used Honda Accord
1,490 Great Deals out of 29,534 listings starting at $1,200
Used Cadillac DeVille
265 listings starting at $2,995
Used Chevrolet Tahoe
1,264 Great Deals out of 34,967 listings starting at $1,550
Used Lincoln Continental
24 Great Deals out of 486 listings starting at $5,999
Used Chevrolet Camaro
613 Great Deals out of 8,353 listings starting at $1,877

Used Cars for Sale

2011 Mercury Grand Marquis For Sale
13 listings starting at $6,895
2010 Mercury Grand Marquis For Sale
22 listings starting at $5,995
2009 Mercury Grand Marquis For Sale
15 listings starting at $5,995
2008 Mercury Grand Marquis For Sale
31 listings
2007 Mercury Grand Marquis For Sale
29 listings starting at $3,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.