Fuel Evaporation System: Maintenance

The charcoal canister is the only serviceable item. It should be replaced every 24 months or 30,000 miles on Light Duty Emission models and every 24 months or 24,000 miles on Heavy Duty Emission models. If operated in severe conditions, more frequent replacement may be required.

Fig 1: Vacuum Hose Routing for Single-Canister Evaporative Control System Canister must be lowest point in system.