It could be a leak in the heater core. I don't think it's easy to repalce. You could disconnect it (bypass it) if you don't need heat in the winter.
the heater core is leaking it is located in the duct work under the dash
yes just had this problem the lines were rubbing on the frame causing a wear and a hole. now leaking fuel and smells horrible
Britain
No It Can Not.
Water.
Breathing Under Water - 1993 is rated/received certificates of: Australia:PG
Radiator or hose but probably water pump
check under car at the passenger rear door .
under the front of the engine about center of the engine. hope this helps
Between passenger front wheel and water pump
It is under the front passinger side where they would put their feet bolted to the under caridge
The Fuses 5 23, and 30 are under the hood fuse box in a 1993 Buick regal limited with a 3800 while the ignition fuse is at left side of the fuse box