Question about 1993 Mercury Grand Marquis

1 Answer

Blower fan on 2000 Mercury Grand Markee won't function

Fan stopped working and when we looked under hood and started checking the wiring it came on. it did this on and off for a week then it stopped all together and we could not get it started. I took a wire and ran a ground from battery to where the black wire snaps into the harness. The fan came on and has been running. The problem is I can't turn it off or up and down with the dash controls. The only way to stop it is to unplug the ground I ran. Is this a common problem? Do you know what is wrong?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 467 Answers

Put back the original plus and check the fuse

Posted on Jul 16, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Mercury Grand Marqui fan stopped working

it would be cheaper getting one from the junk yard. this is my link

Nov 14, 2012 | 2000 Mercury Grand Marquis

1 Answer

1998 Marquis heat/AC system stopped running

just did one , the heater motor quit , and nothing works , replace the heater / blower fan motor , under the hood , passangers side , you'll have to remove the windshield washer tank and i found it was easier to jack the passangerside up , remove the passangerside wheel and remove the screws from the plastic inner fenderwell , at least the back ones . sorry it isnt easier , but thats what i went thru

Jun 22, 2012 | 1998 Mercury Grand Marquis

1 Answer

2000 grand marquis fan not working at any speed

Hello, This usually means the fan speed module (ballast resisitor) is bad. Look under the hood and find your wires from the fan motor. Follow the wires across the Firewall and when you find a connector, that part is the module. Unplug the connector, change the part and it should be good as new.

You might try tapping this part with the handle of a screwdriver and see if it starts working again, before you buy a new part.

Sep 16, 2011 | 2000 Mercury Grand Marquis

1 Answer

Heater won't go off


If you're referring to the heater "FAN" running continuously, then its likely to be your blower motor resistor.

The heater blower motor (under the dash) has constant power supplied from the battery, but is controlled by the blower "resistor" - usually mounted on the blower motor assembly. If one or more of the blower resistor coil wires are faulty, the motor will either not work on one of the fan settings, or will constantly run by itself.

Jun 08, 2011 | 1984 Mercury Grand Marquis

1 Answer

Air condition and heater will work but the blower fan will not come on.2000 Mercury Grand Marquis

First, check your fuses. The part that goes out the most is the blower motor resistor. This part is under the hood. You start at the blower motor and trace its wires across the Firewall until you see a plug-in. This plug-in has 2 screws and 1 electric connector. You can try tapping on the connector and see if the blower starts working.

The part itself is the size of a pack of cigarettes with 90% hidden in the ductwork. There may be a heater line coming off the motor and it will be in the way when you try to remove the part. You best bet is to work on a cold motor, remove the connector, and test the new replacement part by plugging the connector into the part before installation.

When you find that the new part works, you can set it aside and remove the mounting screws on the old part. You will need to pull the rear hose for the heater out of your way temporarily. By working on a cold motor and leaving the hose removal for last, you will minimize the loss of antifreeze and the mess that follows. Then just switch parts and all should be like new.

Dec 28, 2010 | 2000 Mercury Grand Marquis

1 Answer

Fan wont come on in 94 mercury sable 3.8

under hood near fan or near firewall or shock tower,,also look in drivers side kick panel

Jul 06, 2009 | 1999 Mercury Grand Marquis

1 Answer

2000 grand marquis blower fan stops on lower speeds

there is a resistor for the fan motor which works the lower speeds, you need to replace that, it is normally located near the blower motor, got 3-6 wires plugged in it

Jun 28, 2009 | 1993 Mercury Grand Marquis

2 Answers

Blower fan stops on lower speeds 2000 grand marquis

There is a blower realy. Which steps the voltage up or down. If it fails it will run 12 volts or HIGH speed only... Replace that and your good.

Jun 28, 2009 | 1993 Mercury Grand Marquis

1 Answer

Heater fan not working

it could be a loose wire or the fan has gone bad...the blower fan is under the hood on the passenger side held in by three screws and a plug...jiggle the wires under the dash and see if it comes on again if not look for another blower motor

Jan 28, 2009 | 2000 GMC Jimmy

1 Answer

Heat-a/c blower motor stopped

check for ground going to fan. If there is no ground replace a/c control panel located under radio it what you use to turn on the heater/ a/c

Jun 04, 2008 | 2000 Mercury Grand Marquis

Not finding what you are looking for?
1993 Mercury Grand Marquis Logo

105 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts


Level 3 Expert

76164 Answers


Level 3 Expert

5522 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides