K 1500 1/2 Ton Pickup 4WD V8-350 5.7L VIN L 4-bbl (1982)
Positive Crankcase Ventilation: Service and Repair
Recommended Service Interval
Recommended PCV Valve Replacement Interval
1966-71 Vehicles - Every 12,000 Miles.
1972-74 Light, Medium And Heavy Duty Vehicles - Every 24,000 Miles.
1975-76 Light Duty Vehicles - Every 30,000 Miles.
1975-76 Medium And Heavy Duty Vehicles - Every 24,000 Miles.
1977-82 Light Duty Vehicles With Light Duty Emission Package - Every 30,000 Miles.
1977-82 Light Duty Vehicles With Heavy Duty Emission Package - Every 24,000 Miles.
1977-82 Medium And Heavy Duty Vehicles - Every 24,000 Miles.
NOTE: If a 1977-82 medium and heavy duty vehicle is operated involving extensive idling and/or short trip use at freezing
temperatures--where the engine does not become thoroughly warmed-up--replace PCV valve every 12,000 miles.
