Fuel Filler Cap

Fig 1: View Of Fuel Filler Door, Cap & Pocket

Courtesy of GENERAL MOTORS CORP.

NOTE: If a fuel tank filler cap requires replacement, use only a fuel tank filler cap with the same features. Failure to use the correct fuel tank filler cap can result in a serious malfunction of the fuel and EVAP system.

The fuel filler cap (3) is a 'screw on' type, with an integrated tightening torque limiting mechanism. When installing the cap, tighten it until a ratcheting (clicking) sound is heard, indicating the cap is properly tightened. The fuel tank filler cap is tethered to the fuel filler pocket. The fuel tank filler cap requires a quarter of a turn in order to be removed.