Hello I have 2001 grand marquis mercury

Asked by Rob82789 Oct 20, 2016 at 10:30 PM about the 2001 Mercury Grand Marquis LS

Question type: Maintenance & Repair

Hello I have a 2001 grand marquis mercury
and my check engine light is on so I took it
to AutoZone and a popped up which is
P0420 indicates that the bank 1 Catalyst
system efficiency was below threshold for
a predetermined period of time can you
please help me fix the problem or any idea
of what it could be?

2 Answers

Chanson answered 5 years ago

I have a 1995 Grand Marquis. Can i use a catalytic converter from a 2001 Grand Marquis

Mark helpful

Your Answer:

Related Questions

  • Hello I have 2001 grand marquis mercury 2 Answers

    Hello I have a 2001 grand marquis mercury and my check engine light is on so I took it to AutoZone and a popped up which is P0420 indicates that the bank 1 Catalyst system efficiency was below thr...

    2001 Mercury Grand Marquis LS

    -

    Maintenance & Repair

  • 2001 Mercury Grand Marquis 2 Answers

    Tracy I Need Some Help. My Car Exhaust Pipe Has A Hole And My Floorboard Under The Drivers Seat Is Getting Very Hot... I Can Feel The Heat Inside My Shoes. So My Temp Light Comes On And My Car Los...

    2001 Mercury Grand Marquis

    -

    Maintenance & Repair

  • door ajar 07 mercury grand marquis 4 Answers

    07 mercury grand marquis

    2007 Mercury Grand Marquis LS Premium

    -

    Maintenance & Repair

  • 2001 grand marquis mercury LS 8 Answers

    My car won't start I was leaving the store and it was having trouble starting so I waited a min then it started up when I got home and part and cut it off I try starting it up again and nothing I j...

    2001 Mercury Grand Marquis LS

    -

    Maintenance & Repair

  • 2001 Mercury Grand Marquis hard to start after multiple stops 2 Answers

    I have a 2001 Mercury Grand Marquis with about 120,000 miles on it. It starts fine 1st thing in the day but if I have to make multiple stops it gets harder to start each time, until I need to pump the...

    2001 Mercury Grand Marquis LS

    -

    Maintenance & Repair

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Mercury Grand Marquis Questions

CarGurus Experts

  • #1
    Tracy Hooks
    Reputation
    9,700
  • #2
    Trippmeister
    Reputation
    5,040
  • #3
    Bob Beaman
    Reputation
    3,770
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Lincoln Town Car
3 listings
Used Ford Crown Victoria
3 listings starting at $8,960
Used Buick LeSabre
1 listing
Used Chevrolet Silverado 1500
204 Great Deals out of 8,074 listings starting at $3,000
Used Ford F-150
325 Great Deals out of 13,693 listings starting at $3,800
Used Ford Mustang
39 Great Deals out of 1,657 listings starting at $7,999
Used Lexus LS
3 Great Deals out of 28 listings starting at $5,995
Used Chevrolet Tahoe
11 Great Deals out of 839 listings starting at $9,980
Used Chevrolet Impala
6 Great Deals out of 127 listings starting at $5,531
Used Lincoln Continental
13 listings starting at $21,880
Used Honda Accord
50 Great Deals out of 964 listings starting at $2,995
Used Toyota Camry
43 Great Deals out of 1,133 listings starting at $4,795

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.