Hyundai Coupes/Sedans 1994-1998 Repair Guide

Evaporative Emission Canister


See Figure 1

Click image to see an enlarged view

Fig. Fig. 1: Cross-sectional view of a typical activated carbon (charcoal) canister

The evaporative emission system stores gasoline vapors which rise from the sealed fuel tank. The system prevents these unburned hydrocarbons from polluting the atmosphere. It consists of a charcoal vapor storage canister, check or purge valves and interconnecting lines. The system should be inspected every 52,000 miles (84,000 km).

For more information on the evaporative emission system, please refer to Driveability & Emissions Controls of this guide.


Visually inspect the fuel vapor lines for loose connections, sharp bends, distortion, cracks or fuel leakage. Inspect the canister for cracks or damage. Replace components as necessary.