gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Fuel Pressure Gage Installation and Removal|Page 6838 > < Fuel Pressure Gage Installation and Removal
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1. Place the fuel pressure gage bleed hose into an approved container and open the bleed valve to bleed OFF fuel system pressure.
2. Place a shop towel under the J 34730-1A to catch any remaining fuel spillage.
3. Remove the J 34730-1A from the fuel pressure connection.
4. Drain any fuel remaining in the fuel pressure gage into an approved container.
5. Inspect for leaks using the following procedure:

5.1. Turn ON the ignition, with the engine OFF for 2 seconds.
5.2. Turn OFF the ignition, for 10 seconds.
5.3. Turn ON the ignition, with the engine OFF.
5.4. Inspect for fuel leaks.

6. Install the cap on the fuel pressure connection.
7. Install the engine sight shield.

Fuel Pressure Gage Installation and Removal|Page 6838 > < Fuel Pressure Gage Installation and Removal