Brakes!!

[owlpond]

Hi- backed my '85 GN out of the garage and found I had no brakes! Brake light is on and I have a hard pedal. Very small leak on the MC I think. Pump is not coming on at all. Any suggestions? Thanks in advance for the help!

 

[owlpond]

Update: Pump is now working (found a blown fuse). However it's making a noise for about 2-3 seconds that sounds like a sick mosquito!~ Do I need a new pump motor or should I look elsewhere (switch and accumulator)? Thanks!

 

[kh440]

To a point the buzzing sound is normal, annoying but normal. A common culprit on these units is the pressure switch, GM had an open recall on them 12 years or so back. Updated switch kits are still available #18038508 but they aren't cheap (around 230-240)
I haven't seen the accumulators give a whole lot of problems myself, but someone else out there might. Best thing you can do is convert to vacuum booster, check parts for sale board I think it is redregalt that sells complete set-ups.