Dynasty L4-153 2.5L SOHC VIN K TBI (1992)
Brake Bleeding: Service and Repair
Antilock Brake System Bleeding Procedures
Fig. 22 Booster Bleeding
Any time air is allowed to enter the brake system, due to damage or service, the system must be bled. Air in the system will not cause a spongy pedal, but
instead may cause set a trouble code.
When bleeding brakes, maintain an appropriate level of DOT 3 brake fluid, and do not allow the pump/motor assembly to run continuously for more than
60 seconds. If it becomes necessary to run the pump for more than 60 seconds, allow it to cool for several minutes before running it again.
BOOSTER BLEEDING
1.
Depressurize hydraulic accumulator as follows:
a. Disconnect battery ground cable, and ensure ignition is in the OFF position.
b. Pump the brake pedal at least 25 times with about 50 lbs. of force. A noticeable change in pedal feel should be evident.
c. When a definite increase in pedal effort is felt, pump pedal a few more times to remove hydraulic pressure from lines.
2.
Connect negative battery cable.
3.
Check that all brake lines and hoses are tight, and fill fluid reservoir.
4.
Connect a transparent hose to the bleeder screw, and place the other end in a clear container to hold brake fluid.
5.
Open bleeder screw 1/2-3/4 of a turn.
6.
Turn on the ignition switch ON to force fluid out the open bleeder. When the fluid flowing from the tube is clean and free of air bubbles, turn
ignition OFF. If fluid does not flow when ignition is turned ON, the pump may need to be primed. First try shaking the pump return hose,
with the ignition still ON to break up air bubbles. If necessary, turn OFF ignition, remove pump return hose at one end, fill with brake
fluid and reconnect. Attempt bleeding operation again.
7.
Remove bleeder hose, and torque bleeder screw to 7.5 lb-ft Do not over torque.
8.
Top off reservoir to correct level, then turn ignition ON to allow pump to charge the accumulator. The pump should stop after about 30 seconds.
Fig. 23 Pressure Bleeding
