2003 Grand marquis squealing

Asked by Apr 30, 2016 at 11:57 PM about the 2003 Mercury Grand Marquis

Question type: Maintenance & Repair

I have a 2003 grand marquis. It is squealing when I
have the AC or heat is on. It doesn't squeal when
the air is off. It has a brand new belt on it. Is it my
compressor going bad?

3 Answers

102,445

Hard too say really, if the head pressures are too high it can cause the compressor to try and lock up and that would make the belt squeal. I would take it in and have it checked out, the high pressure side is nothing to fool around with, it can cause damage to both the vehicle and anyone close by if it blows.

52,725

Check the belt idler, tensioner and a/c compressor. I'll be it is one of those.

435

New belts or not the problem is usually the tension on the belts.

Your Answer

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,742 nationwide Grand Marquis listings starting at $1,800.

ZIP:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,780
  • #2
    kbro
    Reputation
    2,150
  • #3
    Js08016
    Reputation
    1,880
View All

Related Models For Sale

Used Lincoln Town Car
42 Great Deals out of 1,738 listings starting at $1,000
Used Ford Crown Victoria
4 Great Deals out of 1,059 listings starting at $1,496
Used Chevrolet Impala
542 Great Deals out of 34,988 listings starting at $800
Used Ford F-150
2,548 Great Deals out of 195,752 listings starting at $1,500
Used Ford Mustang
557 Great Deals out of 35,343 listings starting at $1,200
Used Chevrolet Tahoe
710 Great Deals out of 41,228 listings starting at $1,995
Used Cadillac DeVille
1,533 listings starting at $2,995
Used Ford Taurus
191 Great Deals out of 15,389 listings starting at $1,850
Used Lincoln Continental
17 Great Deals out of 3,731 listings starting at $35,890
Used Buick LeSabre
18 Great Deals out of 1,762 listings starting at $1,000

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
26 listings starting at $5,450
2010 Mercury Grand Marquis For Sale
4 Great Deals out of 93 listings starting at $4,795
2009 Mercury Grand Marquis For Sale
8 Great Deals out of 88 listings starting at $2,599
2008 Mercury Grand Marquis For Sale
8 Great Deals out of 153 listings starting at $2,995
2007 Mercury Grand Marquis For Sale
8 Great Deals out of 133 listings starting at $1,995

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.