CAN A 2001 DURATEC 2.5 BE PUT IN A 99 COUGAR WITH A 2.5 WHATS DIFFERENT

Asked by Feb 26, 2011 at 04:29 PM about the 1999 Mercury Cougar 2 Dr V6 Hatchback

Question type: Maintenance & Repair

I have a 99 cougar with a duratec 2.5 motor is bad. I have the chance to buy a brand new 2.5 complete factory motor with all injection and accessories on it . The new crate motor model is a 1G400AA the motor in the car is a 9G400AA what i am trying to find out how is this motor different besides the ecm,belt tensioner, and so on has anybody tried this swap out. The new crate motor is a 2001 I know the 99 and 2000 are the same but what makes the 01 and 02 different. They look very simular.

3 Answers

yes it can be used. No mods necessary, but it would be worthwhile to consider a 3.0 swap if you want more performance.

3 out of 3 people think this is helpful.
45

what is nessary to change out the 2.5 to the 3.0

If you have a manual transmission you will have to grind down the transmission input shaft. Next decide if you want to install the stock 3.0, or use the 3.0 with 2.5 heads and intake manifold. The 3.0 with 2.5 heads makes an additional 30 HP. Otherwise, all the accessories will bolt right up (assuming the engine you get doesnt already have them) Finally, get a tune for it.

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

  • 99 cougar engine 1 answer

    Can a 99 automatic cougar engine (2.5) fit into a 2001 manual cougar

    2001 Mercury Cougar

    -

    Maintenance & Repair

  • 99 cougar 2 answers

    replaced alternator with new but headlights flicker when on. Any ideas why. also engine rpms are slow to drop especially in 1st and 2nd . Could that be tps or? thanks

    1999 Mercury Cougar 2 Dr V6 Hatchback

    -

    Maintenance & Repair

  • 99-2000 cougar 2 answers

    So I swapped a engine and transmission from a 99 cougar in to a 2000 I made all the necessary changes to the wiring for the 2000 computer from the 99 the issue that I have run into it there was a ...

    2000 Mercury Cougar 2 Dr V6 Hatchback

    -

    Maintenance & Repair

  • 2000 Cougar transmission problem? 39 answers

    I have a 2000 Cougar V6. Recently I would notice some serious jerking when I would get on the highway and hit about 65 mph. Then I noticed it would do it on city roads occasionally as well. Now i...

    2000 Mercury Cougar 2 Dr V6 Hatchback

    -

    Maintenance & Repair

  • want to put a different engine from a different maker what would best fit my 2000 cougar 1 answer

    looking toi convert engines on my cougar. SInce the engine is no longer made for said car. and Ford is not the orginal maker of said engine.

    2000 Mercury Cougar 2 Dr V6 Hatchback

    -

    Maintenance & Repair

Cougar

Looking for a Used Cougar in your area?

CarGurus has 243 nationwide Cougar listings and the tools to find you a great deal.

ZIP:

Search Mercury Cougar Questions

Mercury Cougar Experts

#1 lisagayle
lisagayle
Reputation 2,070
#2 Tom Demyan
Tom Demyan
Reputation 660
#3 FordNut
FordNut
Reputation 610
View All

Related Models For Sale

Used Ford Mustang
689 Great Deals out of 38,143 listings starting at $1,750
Used Chevrolet Camaro
644 Great Deals out of 39,145 listings starting at $2,995
Used Ford F-150
3,389 Great Deals out of 203,564 listings starting at $1,273
Used Chevrolet Corvette
360 Great Deals out of 20,214 listings starting at $3,688
Used Chevrolet Impala
950 Great Deals out of 36,331 listings starting at $884
Used Mitsubishi Eclipse
38 Great Deals out of 1,533 listings starting at $1,595
Used Mercury Grand Marquis
29 Great Deals out of 2,246 listings starting at $1,500
Used Pontiac Firebird
13 Great Deals out of 816 listings starting at $3,800
Used Honda Accord
1,184 Great Deals out of 77,676 listings starting at $969