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Home >> Chevrolet >> 1997 >> Corvette V8-5.7L VIN G >> Repair and Diagnosis >> Brakes and Traction Control >> Brake Bleeding >> Service and Repair >> Bleeding Non-ABS Equipped Vehicles >> Pressure Bleeding (Preferred)

Pressure Bleeding (Preferred)

NOTE:
- A bleeding operation is necessary to remove air when it is introduced into the hydraulic brake system.

- It may be necessary to bleed the hydraulic system at all four brakes if air has been introduced through low fluid level or by disconnecting brake pipes at the master cylinder. If a brake hose is disconnected at one wheel, only that wheel caliper needs to be bled. If brake pipes or hoses are disconnected at any fitting located between master cylinder and brakes then the brake system served by the disconnected pipe or hose must be bled.

- Tools Required J 35589 or a Pressure Bleeding Adapter





PROCEDURE
1. Remove the master cylinder reservoir cap. Replace with J 35589.
2. Charge the bleeder to 140-172 kPa (20-25 psi).
3. Connect the hose to J 35589.
4. Raise the vehicle and support.
5. If it is necessary to bleed all of the brake calipers, the following sequence should be used:
a. Right rear
b. Left rear
c. Right front
d. Left front





6. Place the proper size box end wrench, or equivalent, over the brake caliper bleed screw. Attach a clear tube over the screw and allow the tube to hang submerged in a clear container partially filled with brake fluid.
7. Open the brake caliper bleed screw at least 3/4 of a turn and allow the brake fluid flow to continue until no air is seen in the brake fluid. Stroke the brake pedal while pressure bleeding.
8. Close the brake caliper bleed screw.
- Tighten the brake caliper bleed screw to 12 Nm (106 inch lbs.).

NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement, or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and system.

9. Repeat Steps 6 through 8 until all calipers have been bled.
10. Lower vehicle.
11. Check the brake pedal for sponginess. Auto bleed the modulator and repeat the entire bleeding procedure to correct this condition.
12. Remove the brake bleeding equipment from the master cylinder.


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