Hose leaking Water pump leaking
You Don`t Need The Special Ones On This Car. Just Use The Green Color Regular One.
The master cylinder contains the reservoir for the brake fluid. This is where you would add it on an 1990 Cutlass Supreme.
Bleed the master cylinder.& then rebleed the system.
if it smells like antifreeze inside the cockpit then your problem is the heatercore, since you can't see it.
It seems that they most problems with the 93' Oldsmobile cutlass supreme would be the engine and the break. Those seem to go out the most on this car.
Sometimes the Cutlass sedan and the Delta 88 would share the same wheel design.
windshield leak that runs down behind the dash and onto the floor.
1 or 2 inch lift
If there are no visible leaks....a blown head gasket.
At the firewall on the passenger side
Blown fuse?
sad to say.but i do not know either... i have a 1994 cutlass supreme sl and am looking for the same answer. if you hapen to find the answer. i would appreciate it if you would contact me at jazingg@mail.com thanks