Lumina V6-204 3.4L DOHC (1991)
Positive Crankcase Ventilation: Testing and Inspection
Maintenance Procedures
EVAPORATIVE CANISTER FILTER REPLACEMENT
1.
Remove all hoses from the top of the canister and mark. Remove the canister.
2.
Remove the filter element by squeezing it out from under the lip surface at bottom of canister and from under retainer bar, where used.
3.
Squeeze the new element under retainer bar, where used, and position it evenly around the entire bottom of the canister. Tuck the edges under the
lip of canister.
4.
Reinstall the canister to its original position on the vehicle, following normal service procedures.
5.
Reconnect the hoses to the top of the canister, according to the labeling on top of canister, or see VACUUM AND VAPOR HOSE DIAGRAMS.
POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM INSPECTION
Maintenance of the PCV system consists of inspecting the hoses to make sure they are clear and in good operating condition. The vacuum orfice, in the
intake manifold, should be inspected on a regular basis to prevent the hose from being plugged.
MAINTENANCE SCHEDULES
Every 30,000 miles (50,000 km)
Fuel Tank, Cap & Lines.........................................................................................................................................................................................Inspect
PCV Valve.............................................................................................................................................................................................................Inspect
Spark Plugs...........................................................................................................................................................................................................Replace
Spark Plug Wires...................................................................................................................................................................................................Inspect
Every 30,000 miles (50,000 km) or 24 months
Engine Accessory Drive Belt(s).............................................................................................................................................................................Inspect
Cooling System.........................................................................................................................................................................................Service/Inspect
Evaporative Canister Filter...................................................................................................................................................................................Replace
Every 30,000 miles (50,000 km) or 36 months
EGR System...........................................................................................................................................................................................................Inspect
Engine Air & PCV Filters....................................................................................................................................................................................Replace
