I have an 89 Firebird with PBR brakes (4 wheel disk). We tried to get it to pass emissions, but apparently, the rear brakes arn't working. We put the car on a lift and with me pushing on the brakes, the rears still spin. When you engage the emergency brake and the brake pedal, they will stop for a moment, but then start spinning again. We replaced the master cylinder and bled the brakes (starting with the cylinder and then the 2 rear wheels). The pistons on the calipers seem to be working fine. What else could this be? We are stuck now and have to get the car emmissioned in 2 days!

Thanks for your time!

 

Welcome to TGO. There's a wealth of info on this site with some incredibly intelligent and experienced people, so a search is always a good thing. Here's one that 'might' get you started:

https://www.thirdgen.org/forums/brak...-problems.html

JamesC