C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
Fuel Pressure Release: Service and Repair
Fuel Pressure Gage Installation and Removal
TOOLS REQUIRED
J 34730-1A Fuel Pressure Gage
CAUTION: Refer to Gasoline/Gasoline Vapors Caution in Service Precautions.
See: Powertrain Management/Fuel Delivery and Air Induction/Service Precautions/Technician Safety
Information/Gasoline/Gasoline Vapors
Refer to Fuel Gage Leak Caution in Service Precautions.
See: Powertrain Management/Fuel Delivery and Air Induction/Service Precautions/Technician Safety Information/Fuel Gage Leak Caution
INSTALLATION PROCEDURE
1. Remove the engine sight shield.
2. Remove the fuel rail pressure fitting cap.
3. 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.
4. Install the bleed hose on J 34730-1A into an approved container.
REMOVAL PROCEDURE
1. Remove the bleed hose on the J 34730-1A from the approved container.
2. Remove the shop towel from around the fitting and discard into an approved container.
3. Disconnect the J 34730-1A from the fuel pressure valve.
4. Install the fuel rail pressure fitting cap.
5. Install the engine sight shield.