1997 GMC Savana Van Owner's Manual - Page 241

When you put the cap back on, turn it to the right (clockwise) until you hear a clicking sound. Make sure you fully install the cap. Checking Things Under the Hood I NOTICE: If you need a new cap, be sure to get the right type. Your dealer can get one for you. you get If the wrong type,it may not fit or have proper venting, and your fuel tank and emissions system might be damaged. 1 To open the hood, first pull this handle inside the vehicle. It is just front of in the driver's side door frame near the floor. 6-7