They will if it's the 3.8 L - V6 engine ( Motorcraft WR 4099 - part number ) The 4.6 L in the Mustang and Cougar take different spark plug wire sets ( Motorcraft WR 5938 for the Mustang ) ( Motorcraft WR 5935 for the Cougar ) The spark plug wire set for the Cougar has some longer wires in it )
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.
Your Mercury Cougar might stall in reverse because of a problem with a bad crank sensor. This problem could also be due to the crank sensor wires which are damaged or not wired correctly.
wires, connecters, terminals
You fail the mention which engine, so I will assume it is a V6: Look here: http://autorepair.about.com/library/firing_orders/bl-fo-4103.htm
You may need to change your spark plugs,dist. cap and rotor and wires. My v8 did the same thing and now she is running like a dream!
There is a relay/junction in the trunk on drivers side under the mat. Follow wires from tank up thru trunk if necessary. Good luck
Start by checking all of the fuses in the fuse block. There is a good chance that one of them has blown.
Screwed into the engine. Follow the spark plug wires.
well i'd say there on the engine usually on the sides just follow the wires till they meet the engine
On the front of the engine, the thing with the spark plug wires attached to it.
I just changed fuel filter,pump,sparks plugs and wires on mine and it runs great!
The distributor in a Mercury Villager is the round thing at the front of the engine with the six spark plug wires attached to it.