Climate Control unit is getting ON/OFF often.
10

Asked by Azzu Nov 25, 2014 at 04:18 AM about the 2000 Mercury Grand Marquis

Question type: Maintenance & Repair

Hi , While driving, AC is getting ON and OFF and that time I can hear some switching sounds from climate control unit. Sometimes It starts ON again and sometimes it stop AC for long time. kindly guide me to find the rootcause and i would like solve this by myself.I need an advice from experts. thanks

4 Answers
970

Douglas answered 10 years ago

What kind of heater control do you have? Electronic Automatic Tempature Control (EATC) manual

1 people found this helpful.
Mark helpful
10

Azzu answered 10 years ago

Hi Mr. MArk, It is EATC. often Ac is getting on/off and also i can hear switching sound from the panel.

1 people found this helpful.
Mark helpful

Phillip answered about a year ago

Bad alternator. Should be about 14.4vdc, but when the voltage spikes to about 15.5vdc, there is a protection circuit in the EATC that shuts it down to protect it.

Mark helpful

Your Answer:

Related Questions

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1 nationwide Grand Marquis listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Mercury Grand Marquis Questions

CarGurus Experts

  • #1
    Tracy Hooks
    Reputation
    9,860
  • #2
    Trippmeister
    Reputation
    5,150
  • #3
    Bob Beaman
    Reputation
    3,890
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Lincoln Town Car
3 listings
Used Ford Crown Victoria
2 listings
Used Ford F-150
318 Great Deals out of 13,848 listings starting at $1,712
Used Toyota Camry
63 Great Deals out of 1,075 listings starting at $3,995
Used Chevrolet Tahoe
12 Great Deals out of 904 listings starting at $12,900
Used Honda Accord
56 Great Deals out of 997 listings starting at $2,000
Used Buick LeSabre
1 listing
Used Chevrolet Corvette
27 Great Deals out of 1,083 listings starting at $15,000
Used Ford Mustang
62 Great Deals out of 1,356 listings starting at $4,995
Used Toyota Tundra
34 Great Deals out of 1,356 listings starting at $6,255
Used GMC Sierra 1500
129 Great Deals out of 6,505 listings starting at $3,975

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.