Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. 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.

Remove the fuel rail pressure fitting 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.

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

Courtesy of GENERAL MOTORS CORP.