I'm looking for an accumulator switch for the brake system. It's an hydraulic switch. It sends to the relay to cut the motor on when the pressure gets low. The power assist is not working at all now. The existing switch leaks when you pull the wiring harness off If anyone knows anything about this system or knows where I can find one, it would be greatly appreciated.

Ok this a 91 Olds Cutlass Supreme FWD Int'l with a motor driven hydraulic brake booster?

Ok this a 91 Olds Cutlass Supreme FWD Int'l with a motor driven hydraulic brake booster?
Yes it is...

This has a vacuum brake booster, don't understand what you are looking for/at. Is this the power unit for the ABS motor/master cylinder/boooster? This will be a GM part only if so, try to make you posts clearer and include that you have abs, that info would would have saved both of us some typing.