They keep claiming they can't find problem,
Sounds stupid, do you have power brakes and ABS.
On some ABS-equipped vehicles, you may also have to cycle or reposition the ABS solenoids or valves with a scan tool. Many also have additional bleeder screws on the ABS unit for bleeding the system.
Don't they know it has a problem-The pedal is going towards the floor when depressed. That's a problem for me.
The master cylinder is responsible for creating pressure. It has to leak somewhere to lose pressure-did they open up the back brakes and inspected the wheel cylinders. Also did you bleed the master cylinder before you attached the lines.
Look for the proportioning valve on the back bleed it out than bleed the rear wheel cylinders starting with the right rear then left rear.
Tuesday, October 30th, 2007 AT 3:30 PM