DrCharles
Full Access Member
The rear ones are weird. When I have someone pump and stand on the brakes, when you crack the bleeders some fluid drips out but then it just stops. I'll have to hook up vacuum bleeders.
Ask yourself first, why doesn't standing on the brakes make fluid shoot out like Old Faithful? The pressure available from the master cylinder is far greater than anything you can do with vacuum (-14.7 psi is a perfect vacuum). Either there's a lot of air in the system, your RABS is defective and dumping the pressure to the rear brakes, the master cylinder is bad, etc.