GM Service Manual Online
For 1990-2009 cars only

Info - Proper Method to Secure Fuel Cap During Refueling

Subject:Proper Method to Secure Fuel Cap During Refueling

Models:2004 Cadillac Escalade, Escalade ESV, Escalade EXT
2004 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2004 GMC Sierra, Yukon, Yukon XL




Object Number: 1499537  Size: SH

This bulletin is being issued to inform dealers that there are two different types of fuel caps used on all 2004 full-size pick-ups and utilities with gasoline engines. A threaded design is used with the E-85 5.3L (VIN Z -- RPO L59) engine. A ¼ turn design is used with all other gas engines. The ¼ turn design has a shorter tether strap and will not allow the customer to drape the fuel cap over the hook on the filler door. However, as designed and per the vehicle's Owners Manual, the cap can be retained in the hook by the lip of the fuel cap.