Spark plug order? there is no such thing.
You can find the correct firing order for your 1987 mercury cougar at www.coolcats.com, it is a website dedicated to the cougar and thunderbird.
what is the spark plugs firing order for a mercury villager 1997
The firing order for a 1990 Cougar 3.8 is 1-4-2-5-3-6. The number one cylinder is the front one on the passenger side.
firing order for 2000 mercury mountaineer with a 4.0, v-6 engine
13726548
BuRN
.054
Oddly enough, the firing order is 1,2,3,4,5,6. #1 spark plug is at the right rear of the engine. #1 tower on the distributor is pointed somewhat at #1 spark plug.
According to one of Fords websites : For the 1992 Mercury Cougar , 3.8 liter V6 engine : ( the spark plugs are gapped at .054 inch )
According to one of the Ford websites : For a 1988 Mercury Cougar , 3.8 liter V6 engine : ( the spark plugs are gapped at .054 inch )
take off intake and have small fingers
According to one of Fords websites : For the 3.8 liter V6 engine in a 1988 Mercury Cougar : ( the spark plugs are gapped at .054 inch )