SMU - Revised Brake Test Specifications. Geo Prizm 1990

For 1990-2009 cars

# SMU - Revised Brake Test Specifications

Subject: | Revised Brake Test Specifications

Models: | 1989-92 Geo Prizm

This bulletin is being issued to revise the Pressure Value for Proportioning Valve Pressure Test and to update Special Tools in Section 5 -- Brakes of the Service Manual.

### Pressure Test

Tools Required:

• | J 38330 Load Proportioning Gauge Adapters

• | J 36404-B Teves ABS Pressure Gauge

• | J 43845 Pressure Gauge Attachment

• | J 35126 Brake Pressure Gauge

1. Disconnect the top three brakes pipes from the proportioning valve.
2. Install the following to the proportioning valve:

• | J 38330

• | J 35604-B

• | J 43845

• | J 35126

3. Bleed the air from the pressure gauges.
4. By depressing the brake pedal, raise the master cylinder pressure to 3,432 kPa (498 psi). If the rear wheel cylinder pressure is not 3,432 kPa (498 psi), replace the proportioning valve.
5. By depressing the brake pedal, raise the master cylinder pressure to 7,845 kPa (1,138 psi). If the rear wheel cylinder pressure is not 5,070 kPa (735 psi), replace the proportioning valve.
6. Remove the following from the proportioning valve:

• | J 38330

• | J 35604-B

• | J 43845

• | J 35126

7. Connect the three brake pipes to the proportioning valve.
8. Bleed the brake system.
9. Check for fluid leakage.