Try looking on the drivers side in the trunk under the mat/carpet along the side.
inside of the tank
1988 cougar will not crank over
driver side footwell under dash.
The 1988 Mercury Cougar diagnostic port can be found under the hood.
The fuel pump relay for a 1988 Mercury Tracer is located under the center of the dash, and hidden by the carpet. There are websites that have the repair manual for a 1988 Mercury Tracer available to download, either free or for a small charge.
you have to remove the sound dampeners on the bottom of the steering column and it will be to the right of the fuse block
Well, you don't state the poblem, but if all your turn signals are not working and flashing as they should, replace the Turn Signal Flasher Relay.
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 )
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 )
http://www.coolcats.net/tech/troubleshooting/heatercore.html
The fuel pump relay on a 1988 Mercury Tracer is located to the rear of the fuel pump. My Honest Mechanic offers troubleshooting manuals for fuel and no start situations. The first suggestion is to check for the fuel reset switch on the right rear passenger side of the trunk. Press the switch to reset the relay.
For a 1988 Mercury Cougar : According to my Chilton's Auto Repair Manual : For the 2.3 litre turbo ( 18 U.S. gallons ) For the 3.8 litre V6 ( 21 U.S. gallons ) For the 5.0 litre V8 ( 20.7 U.S. gallons )