Engine swap and matching computer system

10

Asked by #ColeWorld Jan 11, 2018 at 12:31 PM about the 2003 Mercury Grand Marquis GS

Question type: Maintenance & Repair

Hey, If I take a 99 crown victoria
engine and put it in a 03 grand
marquis body will the computer
system match up together without a
problem...

2 Answers
101,515

KenF answered 6 years ago

I would check the two engines share the same torque converter design and rating, also some changes would have to be made to the PCM programming. You would have to keep the 2003 GM's PCM as there are some differences in transmission design between 99 and 03, and the older PCM would not work. If the 99 CV is a police model there are many other issues to address as well.

1 people found this helpful.
Mark helpful
60

Terrence answered 5 years ago

I have A 90 grand Marquis I would like to swap it over to a 5.3 engine Anyone have any suggestions on what I would have to do

6 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Engine swap and matching computer system 2 Answers

    Hey, If I take a 99 crown victoria engine and put it in a 03 grand marquis body will the computer system match up together without a problem...

    2003 Mercury Grand Marquis GS

    -

    Maintenance & Repair

  • Engine computer 2 Answers

    Engine computer

    2002 Mercury Grand Marquis LS Ultimate

    -

    Maintenance & Repair

  • Engine swap 1 Answer

    Can I swap out my .4.6 v8 engine in my 1998 Mercury Grand Marquis LS for a 5.4 liter v8 engine

    1998 Mercury Grand Marquis 4 Dr LS Sedan

    -

    Maintenance & Repair

  • Grand Marquis Motor and Transmission swap 2 Answers

    Will a 1996 Lincoln Town Car motor and transmission swap over and fit a 1993 Mercury Grand Marquis? If not what vehicle would I be able to use?

    1993 Mercury Grand Marquis LS Sedan RWD

    -

    Maintenance & Repair

  • How do you reset the ECM and anti theft system? 1 Answer

    How do you reset the ECM and reset the anti theft system?? I have a 2000 grand marquis and the car will not start.

    2000 Mercury Grand Marquis LS

    -

    Maintenance & Repair

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
    9,680
  • #2
    Trippmeister
    Reputation
    5,040
  • #3
    Bob Beaman
    Reputation
    3,760
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford Crown Victoria
2 listings starting at $8,960
Used Lincoln Town Car
4 listings starting at $9,995
Used Ford Mustang
51 Great Deals out of 1,662 listings starting at $5,977
Used Ford F-150
336 Great Deals out of 13,399 listings starting at $3,000
Used Honda Accord
52 Great Deals out of 997 listings starting at $2,995
Used Chevrolet Silverado 1500
201 Great Deals out of 8,235 listings starting at $6,995
Used Chevrolet Impala
9 Great Deals out of 130 listings starting at $4,888
Used Chevrolet Tahoe
13 Great Deals out of 847 listings starting at $698
Used Toyota Camry
52 Great Deals out of 1,161 listings starting at $4,594
Used Chevrolet Camaro
13 Great Deals out of 480 listings starting at $11,749
Used Lincoln Continental
13 listings starting at $21,880
Used Ford Taurus
8 Great Deals out of 82 listings starting at $2,499

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.