OEM 2002 Toyota Sequoia Fuel Injector

2002 Toyota Sequoia Parts Questions & Experts Answers

• Q: How to service and repair fuel injectors on 2002 Toyota Sequoia?

  A: You need to start the fuel injector servicing by taking out three main pieces: throttle body cover and intake air connector and fuel pressure pulsation damper. Place cloth below the delivery pipe before gently loosening the pulsation damper. Transfer the accelerator cable from the engine but maintain the PCV hose connectivity to the PCV valve after you remove the connector and hose of the VSV for EVAP followed by disconnection of the accelerator cable bracket and two nuts. The first task is to remove the throttle body cover bracket followed by disconnecting the engine wires from the No.1 engine hanger and wire bracket and finally removing the delivery pipes and injectors but avoiding injector drops. The repair process necessitates a step-by-step bolt removal of the fuel return pipe clamp bolt followed by the bolt and two union bolts and four gaskets until the front fuel pipe detachment happens. Afterwards disconnect all eight injector connectors then separate the four nuts to free the delivery pipes from the lower intake manifold and remove both delivery pipes and eight injectors and four spacers and eight insulators with the O-ring and grommet from each injector. Each injector requires a new grommet before installing it despite requiring a light gasoline application to new O-rings during installation and requiring attention to safe injector movement at all times. Workers must orient the injector connectors toward the outside before adding the four spacers and eight new insulators to the intake manifold then finally position the two delivery pipes and injector assemblies on the lower intake manifold while installing the four nuts in a temporary fashion. Insert the front fuel pipe alongside the bolt and four new gaskets and two union bolts maintaining proper torque values before fastening the bolt which holds the fuel return pipe clamp on the LH delivery pipe. You should check the delivery pipe injectors for free rotation before installing the four manifold-fastening nuts and making the connector connections for the eight injectors. Begin the installation process by clamping the two wires to both RH delivery pipe brackets and the No.1 engine hanger then finish with installing the engine wire protector through two bolts. The first installation step involves connecting the PCV hose to the valve and after that comes the accelerator cable clamp and VSV for EVAP mounting to the upper intake manifold. Following this step is the connection of the EVAP hose and VSV connector before setting the throttle body cover bracket with accelerator cable bracket and securely tightening all nuts. The service ends by adding the throttle body cover followed by the fuel pressure pulsation damper and finally installing the intake air connector.