Section 32 (Manual Transmission Clutches): Bleeding
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
DO NOT reuse fluid bled from system. Fluid may be aerated or contaminated. Ensure no air is drawn into clutch hydraulic system during bleeding procedure.
- Clean and remove reservoir cap. Top-off reservoir with NEW DOT 3 brake fluid.
- Have assistant depress and hold clutch pedal. Open bleed screw. If equipped with a NV 3500 or NV 4500 transmission, the bleeder is located on the clutch actuator cylinder, if equipped with a ZF S6-650 transmission the bleeder is located on the master cylinder housing. Close bleed screw and release clutch pedal.
- Repeat procedure until all air is out of system. Check and refill reservoir as necessary during bleeding. After bleeding, pump clutch pedal several times. If clutch engagement is not satisfactory, repeat bleeding procedure.
- If normal bleeding procedure is unsuccessful, pump pedal quickly for 30 seconds. Stop pumping and let the air escape into the reservoir while moving the rubber pad up and down 0.5 in (12 mm) for 30 seconds. Repeat procedure as necessary.