1994 Chevrolet S10 Pickup Owner's Manual - Page 304

6. TRANSMISSION SERVICE: Automatic Transmission- Change the transmission fluid and filter every 15,000 miles (25 000 km) he vehicle is mainly driven under one or moreof these conditions: 0 In heavy city traffic. 0 Where the outside temperature regularly reaches 90°F (32°C) or higher. 0 0 In hilly or mountainous terrain. Frequent trailer pulling. Uses such as taxi, police, delivery or other commercial service. If the vehicle is not used mainly under any of these conditions, change the fluid and filter every 30,000 miles (50 000 k ) See "Automatic m. Transmission Fluid" in the Index more information. for Manual Transmission- Transrnission fluid does not require periodic changing. 7. FUEL FILTER REPLACEMENT* Replace the fuelfilter at the specified interval or sooner clogged. if 8. SPARK PLUG REPLACEMENT*$- Replace spark plugs with the type listedin Section 6. Spark plugs (AC908) the 2.2L Engine(VIN for Code 4) should be replaced every 100,000 miles (166 kilometers). 000 Spark plugs (.CR43TSM) the 4.3L engines(VIN Codes W and Z) for should be replaced every 30,000 miles 000 kilometers). See (50 ''Specification Charts" in the Index. 9. SPARK PLUG WIRE INSPECTION*- Clean wires and inspect for burns, cracks or other damage. Check the wire boot the fit at distributor and at the spark plugs. Replace wires as needed. 10. ENGINE TIMING CHECK AND DISTRIBUTOR CHECK*$ Adjust timing to underhood label specifications. Inspect the inside and outside of the distributor cap and rotor cracks, carbon tracking and for corrosion. Clean or replace as needed. *An Emission Control Service $=The California Air Resources Board has detennined that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to the completion of vehicle usefuilife. General Motors, however, urges that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded. 7-8