1999 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 322

yellowblue How to Add Fluid Here's how to add fluid. Refer to the Maintenance Schedule to determine what kind of fluid to use. See "Recommended Fluids and Lubricants" in the Index. 1. Remove the filler plug. 2. Add fluid at the filler plug hole. Add only enough fluid to bring the fluid level up to the bottom of the filler plug hole. 3. Install the filler plug. Be sure the plug is fully seated. When to Check and What to Use Refer to the Maintenance Schedule, Owner Checks and Services, to determine how often you should check the fluid level in your clutch master cylinder reservoir and for the proper fluid. See "Owner Checks and Services" and "Recommended Fluids and Lubricants" in the Index. Hydraulic Clutch The hydraulic clutch system in your vehicle is self-adjusting. A slight amount of play (1/4 inch to 1/2 inch or 6 mm to 12 mm) in the pedal is normal. It isn't a good idea to "top off" your clutch fluid. Adding fluid won't correct a leak. A fluid loss in this system could indicate a problem. Have the system inspected and repaired. How to Check The proper fluid should be added if the level does not reach the bottom of the diaphragm when it's in place in the reservoir. See the instructions on the reservoir cap. 6-24