Installation Procedure

WARNING: This page is about a different car, the 2006 GMC Yukon XL, 2006 Chevrolet Suburban, and 2006 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Refer to GASOLINE/GASOLINE VAPORS CAUTION in Cautions and Notices.

CAUTION: Refer to FUEL GAGE LEAK CAUTION in Cautions and Notices.

Fig 1: Identifying Fuel Pressure Gauge J 34730-1A

Courtesy of GENERAL MOTORS CORP.

Remove the engine sight shield. Refer to Engine Sight Shield Replacement in Engine Mechanical - 8.1L.
Remove the fuel rail pressure cap.
Connect the J 34730-1A to the fuel pressure valve. Wrap a shop towel around the fitting while connecting the gage in order to avoid spillage.
Install the bleed hose on J 34730-1A into an approved container.