Fuel Injector: Service and Repair

1. Disconnect battery ground cable and drain coolant system.
2. Disconnect air hose and PCV pipe.
3. Disconnect water hose and all necessary vacuum hoses.
4. Remove EGR pipe and EGR valve.
5. Remove intake air connector, cold start injector hose and air intake chamber.
6. Disconnect injector electrical connectors, then disconnect fuel hose and pipe.
7. Remove fuel delivery pipe and fuel injectors.
8. Reverse procedure to install and note the following:
a. Check to ensure that insulators are installed in intake manifold injector holes.
b. Install new O-ring onto injectors.
c. Apply thin coating of gasoline to injector O-rings.
d. Install injectors and delivery pipe as an assembly onto intake manifold. Check to insure that injectors can be rotated after they are installed in intake manifold.