GM Corvette 1963-1982 Repair Guide

Evaporative Emissions Control System


See Figure 1

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Fig. Fig. 1: Location of the carbon canister on 1982 vehicles

This system, standard since 1970, eliminates the release of unburned fuel vapors into the atmosphere. The only periodic maintenance required is an occasional check of the connecting lines of the system for kinks or other damage and deterioration. Lines should be replaced only with quality fuel line or special hose marked "evap." Every 12,000 miles or 12 months (1970-71), every 24,000 miles or 24 months (1972-74), every 30,000 miles or 24 months (1975-81), the filter in the bottom of the carbon canister which is located in the engine compartment should be removed and replaced. This service is not required on 1982 models.