2004 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 533
2004 Chevrolet Silverado 1500 Pickup Manual
Page 533 highlights
(g) Add fluid as needed. A fluid loss could indicate a problem; repair as needed. Check vent hose at transfer case for kinks and proper installation. (h) Change automatic transmission fluid and filter if the vehicle GVWR is over 8600 lbs. or if the vehicle is mainly driven under one or more of these conditions: − In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. − In hilly or mountainous terrain. − When doing frequent trailer towing. − Uses such as found in taxi, police or delivery service. (i) Drain, flush and refill cooling system. See Engine Coolant on page 5-32 for what to use. Inspect hoses. Clean radiator, condenser, pressure cap and filler neck. Pressure test the cooling system and pressure cap. (j) A fluid loss in any vehicle system could indicate a problem. Have the system inspected and repaired and the fluid level checked. Add fluid if needed. (k) Inspect system. Check all fuel and vapor lines and hoses for proper hook-up, routing and condition. Check that the purge valve works properly (if equipped). Replace as needed. (l) Change filter only at the first maintenance service performed on the vehicle. (m) Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions: − In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. − In hilly or mountainous terrain. − When doing frequent trailer towing. − Uses such as found in taxi, police or delivery service. (n) Change clutch fluid (or every 24 months, whichever occurs first). Owner Checks and Services These owner checks and services should be performed at the intervals specified to help ensure the safety, dependability and emission control performance of your vehicle. Your GM Goodwrench dealer can assist you with these checks and services. Be sure any necessary repairs are completed at once. Whenever any fluids or lubricants are added to your vehicle, make sure they are the proper ones, as shown in Recommended Fluids and Lubricants on page 6-13. 6-9