In 91 the car has an aod (automatic over drive) wich was shifted on the council 12D on a 95 they had changed to an eod (electronic over drive) where the original trans automaticaly shifted to 4th gear when in D the eod has a button you can push so that you can keep 3rd gear while in D and wont go to 4th until the button is depressed. I'm not sure about the bolt patterns on the motors but i do know that your shift linkage and overdrive will not work properly.
The 3.8 liter V6 engine in a 1991 Mercury Cougar has a timing CHAIN
yea
NO.
There are absolutely no body parts that interchange with a 1991 mustang and 1991 cougar. The mustang is a fox body chassis and the cougar is on the mn12 chassis. The older cougars I believe pre 1988 were structurally similar to a mustang, by this i mean engine bays very similar and rear ends interchangeable. As far as the bodies they did not have interchangeable parts.
According to my Chilton's Auto Repair Manual : For the 3.8 liter V6 engine in a 1991 Mercury Cougar : With engine oil filter change : ( 5.0 US. quarts )
( .054 inch ) for the 3.8 liter V6 and the 5.0 liter V8 according to ford parts . com
Any 5 speed from 91 to 96.
That truck should have the 700R4 transmission in it.
no
According to one of Ford's websites : For a 1991 Mercury Cougar , 3.8 liter V6 : ( the spark plug gap is .054 inch )
Where can I find a wiring diagram for a Ford 1991 F250 pickup with 5.8 liter V8 and automatic transmission with overdrive?
Altrincham Interchange ended in 1991.