Fuel Delivery and Air Induction: Service and Repair
FUEL PRESSURE GAUGEFig.1 Fuel System Pressure Tester #8978:
This gauge package (special tool # 8974) (Fig. 1)is designed to check the injectors or fuel pump for leak down conditions and fuel system pressures. Refer to the Powertrain Diagnostic Manual for more information on the operation of this tool.
1. Perform the fuel pressure release procedure.
2. Find a fuel line quick connect fitting that is accessible and install special tool # 8974.
3. Refer to the Powertrain Diagnostic Manual for the proper operation of this gauge package.
4. Perform the fuel pressure release procedure.
5. Remove gauge from fuel system and reconnect fuel lines.
6. Use the DRBIII to pressurize the fuel system to check for leaks