Bonneville V6-3800 3.8L VIN L SFI (1995)
8. Depress brake pedal slowly one time and hold. Use slow pedal action. Rapid pedal pumping pushes the master cylinder secondary piston down the
bore in a way that makes it difficult to bleed the system.
a. Loosen bleeder valve to purge air from the caliper/cylinder.
b. Tighten bleeder valve, and slowly release brake pedal.
c. Wait 15 seconds, then repeat the sequence, including the 15 second wait, until all air is removed. You might have to repeat the sequence 10 or
more times to remove all the air.
TIGHTEN
^
Wheel cylinder bleeder valve to 10 Nm (88 lb. in.).
^
Caliper bleeder valve to 13 Nm (115 lb. in.).
9. Install bleeder valve caps.
10. Lower vehicle.
11. Fill master cylinder to full mark.
12. Check brake pedal for "sponginess". Repeat entire bleeding procedure to correct "sponginess".
Pressure Bleeding
BLEEDING BRAKE HYDRAULIC SYSTEM
CAUTION: Do not move the vehicle until a firm brake pedal is obtained. Air in the brake system can cause loss of brakes with possible
personal injury.
Whenever air gets into the brake hydraulic system, you must bleed the system to remove it. You might have to bleed the hydraulic system at all four
wheel positions if air has entered the system due to low fluid level, or from brake pipes having been disconnected at the master cylinder. If a brake pipe
is disconnected at one wheel, only that wheel cylinder/caliper needs to be bled. if pipes are disconnected at any fitting located between the master
cylinder and the wheels, then the brake system served by the disconnected pipe must be bled.
PRESSURE BLEEDING MANUALLY
Fig. 1 Wheel Cylinder Bleeding
