The horn relay for a 1998 Sable is on the back of the distribution block. The block is under the dash on the drivers side.
Replace auto lamp module.
Replace it with new tubing.
where is the horn relay on my 1993 Mercury Sable located
The window washer pump should be located in the bottom of the washer reservoir for the 1998 Sable. The reservoir may have to be removed to replace it.
* Remove the front bumper fascia * Unplug the horn electrical connector and remove the bracket bolt
I quess is that the spring plunger that is behind your horn button is defective. Remove the steering wheel to replace it.
Narwhals
replace the horn relay if that isn't the problem i would have horn button/switch checked
Pull off the upper intake plenum and you will have access to the plugs and wires.
See stvndberryhill's answer under 1998 Sunfire horn relays. It is explained in great detail. The guy knows what he's talking about.
Yes - the filter is outside the tank, which is where the fuel pump is mounted. See "Related Questions" below - The Taurus information applies equally to the Sable.