what is the firing order for a 1987 mercury cougar v8
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.
Assuming you mean catalytic converter, yes
CID?
No, replace the converter with a new one. Anything else is illegal.
According to a website I was looking at : For a 1987 Mercury Cougar , 3.8 liter V6 , 4 speed automatic transmission ( 17 city / 24 highway , miles per U.S. gallon )
Yes, it is illegal to remove the converter without replacing it with a new one.
Yes.
right frame rail near fuel tank.
about 300 at the block about 220 at the wheels
yes it does its built in the alternater
I have a 1987 Chevy Silverado 350 tbi that runs just fine without the catalytic converter. I run dual exhaust from each side of the engine with glass packs, has more power and sounds great.......SES light comes on but will go off.......