Mustang GT 4.6 into a Marquis

10

Asked by Jan 23, 2016 at 02:58 AM about the 1995 Mercury Grand Marquis

Question type: Car Customization

I have a 95 Mercury Grand Marquis 4.6 with a
blown motor I bought a 96 Mustang GT 4.6 engine
and transmission that I was going to put in my 78
Cobra but decided to go old school 351. Can I put
the 4.6 Mustang GT motor in the Marquis? Will it
bolt in straight in or will I have to change the intake,
etc. Will the Marquis ECM control the 4.6 out of the
Mustang?

5 Answers

73,985

No. A 1995 model is OBD I. A 1996 model is OBD II. Completely different computer systems. HTH. -Jim

1 of 1 people found this helpful.
10

Can I just buy a 96 ECM and will it plug into a 95 wiring harness?

1 of 1 people found this helpful.
73,985

You'll have to change the wiring harness, sensors, etc. OBD II systems are completely different and use additional sensors as well. HTH. -Jim

Your crazy. They change from obd1 to obd2's in the early 90's. 95 and up are obd2. So glad you didn't put that crappy 4.6 in your antique mustang. And if they didn't so what still same motor just change your sensors out and put it in. Yes should drop right in and bolt right up. 33 years in mechanic experience and I own 2 96 mustangs and they are both obd2. My neighbor has a 95 mercury grand marquis and his is obd2. So don't know where other guy got his info but he is WRONG....

73,985

Sorry, Rich1977, but you're the one who's mistaken. 1996 and newer are OBD II. Some late production '95s were produced with OBD II technology, but not many. So since I obviously can't see this vehicle it's safe to assume it's OBD I. It may also interest you to know that OBD I vehicles came on the scene in 1981. You won't find the ALDL connector under the dash though. That didn't become standardized until '82 and a bit later at some manufacturers. Then you have vehicles from that time period like my '86 Chevy Pick Up which I bought brand new. It was not computer controlled at all. It's like anything, when something is new, anything goes. Once the vehicle manufacturers and the Federal Government decide it's a good idea and it works regulations are put into place to standardize it. You are aware that emission control regulations go back to 1968 ('66 in California)? HTH. -Jim

Your Answer

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,597 nationwide Grand Marquis listings starting at $1,000.

ZIP:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,880
  • #2
    kbro
    Reputation
    2,180
  • #3
    Js08016
    Reputation
    1,940
View All

Related Models For Sale

Used Lincoln Town Car
20 Great Deals out of 1,623 listings starting at $2,450
Used Ford Crown Victoria
5 Great Deals out of 939 listings starting at $1,496
Used Chevrolet Impala
551 Great Deals out of 33,419 listings starting at $1,499
Used Ford F-150
3,370 Great Deals out of 226,796 listings starting at $1,250
Used Ford Mustang
460 Great Deals out of 42,890 listings starting at $1,488
Used Chevrolet Tahoe
934 Great Deals out of 39,821 listings starting at $2,000
Used Honda Accord
909 Great Deals out of 79,342 listings starting at $1,295
Used Cadillac DeVille
1,441 listings starting at $2,695
Used Toyota Camry
1,137 Great Deals out of 77,518 listings starting at $1,400
Used Chevrolet Caprice
4 Great Deals out of 154 listings starting at $7,495

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
13 listings starting at $5,835
2010 Mercury Grand Marquis For Sale
3 Great Deals out of 82 listings starting at $3,990
2009 Mercury Grand Marquis For Sale
5 Great Deals out of 80 listings starting at $3,999
2008 Mercury Grand Marquis For Sale
6 Great Deals out of 144 listings starting at $1,000
2007 Mercury Grand Marquis For Sale
6 Great Deals out of 124 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.