Removal (Cab & Chassis)
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Relieve the fuel pressure by removing fuel fill cap. Raise and support vehicle. Disconnect the fuel pipes from the fuel cooler. See QUICK CONNECT FITTINGS (METAL COLLAR) . Remove the retaining nuts from the chassis crossmember. Remove the fuel cooler. See Fig 1.