OEM 2000 Toyota 4Runner Fuel Injector

2000 Toyota 4Runner Fuel Injector Parts Q&A

• Q: How to Service and Repair a Fuel Injector on 2000 Toyota 4Runner?

  A: The fuel injector service starts with fastening the throttle body and disconnecting the engine wire that separates 4 injector connectors and the crankshaft position sensor connector, knock sensor connector and camshaft position sensor. The service begins with disconnecting the DLC1 device and wire clamp from their mounting points. Well to remove delivery pipe and injectors you must disconnect vacuum sensing hose and fuel return hose from the fuel pressure regulator followed by removing union bolt with 2 gaskets from the fuel inlet pipe to delivery pipe connection while placing a suitable container or shop rag underneath. Perform this extraction step by slowly loosening the union bolt. You should remove the delivery pipe and four injectors carefully after taking out the two bolts and delivery pipe. Also take care to prevent dropping any injector. Remove the 4 insulators from spacers after pulling out each injector while taking away its O-ring and grommet. Install new grommets to each injector and apply gasoline to wet a fresh O-ring before installation after which you should carefully guide the injector into delivery pipe position its connector upward. Correction of the installation begins with fitting the 4 insulators onto their spacers and adding the 4 injectors to the cylinder head with the delivery pipe in place. Inspect infiltrator rotation before setting the O-rings; replace them if necessary. The fuel inlet pipe requires installation onto the delivery pipe using 2 new gaskets and a union bolt with a torque setting at 29 Nm (300 kg.cm, 22 ft.lb). Afterward, attach the fuel return hose together with the vacuum sensing hose to the fuel pressure regulator. The last step involves both plugging in the engine wire and reinstalling the throttle body.