Blower motor runs on high while the car is running.

Asked by dnaeubank Feb 04, 2015 at 11:17 AM about the 2003 Mercury Grand Marquis LSE

Question type: Maintenance & Repair

While the car is running, the blower motor runs on high.  The high/low control nob does not change the speed of blower.  It will not turn off.  It will fluctuate between vents when pressing the off button and the automatic button (A/C vents, floor vents, defrost vents).

1 Answer
970

Douglas answered 9 years ago

It depends on weather you have ATC (Automatic Tempature Control) or not if you do I think your climate control unit needs to be rebuilt (100.00 for rebuilt 600.00 for NEW) one. They are noted for going bad especially in that year I think it's from 2000 on up that had the problem ones. Oh they even made it more difficult because the older ones (which work better) aren't interchangeable with newer ones. There are all kinds of companies on E-Bay that rebuild them check them out.

2 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Blower motor runs on high while the car is running. 1 Answer

    While the car is running, the blower motor runs on high. The high/low control nob does not change the speed of blower. It will not turn off. It will fluctuate between vents when pressing the off bu...

    2003 Mercury Grand Marquis LSE

    -

    Maintenance & Repair

  • Can't turn off the H/A blower motor. It stays on constantly. 16 Answers

    We have replaced the blower motor resistor three times in the last three months and now the blower won't turn off again. Once it quit and it wouldn't turn on. Any ideas?

    2003 Mercury Grand Marquis LSE

    -

    Maintenance & Repair

  • Blower motor 1 Answer

    I have a 2002 Mercury Grand Marquis and the blower motor quit blowing it does not blow on heat nor does it Blow on AC sometimes it goes in and out like real quickly on off on off but now it's not ...

    2001 Mercury Grand Marquis LS

    -

    Maintenance & Repair

  • fan blower for eatc-unit is blowing all the time when the car is running,, 1 Answer

    it blows to the floor when I start the car and wont turn off,, I push the off switch and it keeps blowing and I can push the other switch and it does change like vent defrost but just wont stop runnin...

    2006 Mercury Grand Marquis LS Ultimate

    -

    Maintenance & Repair

  • 2000 mercury grand marquis blower motor not working but the motor is good 1 Answer

    2000 mercury grand marquis blower motor not working but the motor is good

    2000 Mercury Grand Marquis GS

    -

    Maintenance & Repair

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

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Lincoln Town Car
8 listings
Used Ford Crown Victoria
5 listings starting at $8,000
Used Chevrolet Impala
14 Great Deals out of 115 listings starting at $3,531
Used Ford F-150
323 Great Deals out of 15,226 listings starting at $3,295
Used Lexus LS
27 listings starting at $7,900
Used Ford Mustang
42 Great Deals out of 1,255 listings starting at $4,995
Used Honda Accord
40 Great Deals out of 909 listings starting at $2,799
Used Cadillac DeVille
7 listings
Used Chevrolet Tahoe
15 Great Deals out of 822 listings starting at $5,995
Used Lincoln Continental
4 Great Deals out of 12 listings starting at $17,900
Used Chevrolet Camaro
21 Great Deals out of 321 listings starting at $10,500

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.