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Evaporative Emissions System: Maintenance

The only service normally required for system is to replace filter located in charcoal canister every 12 months or 12, 000 miles. Replace more often if vehicle is driven in dusty areas. All other parts are serviced as a complete replacement.

NOTE: When replacing vent lines use only replacement hose marked "EVAP".
Fig 1: EVAPORATION CONTROL SYSTEM (ECS)
G09325267Courtesy of GENERAL MOTORS COMPANY