OEM 2000 Toyota 4Runner Fuel Injector

2000 Toyota 4Runner Parts Questions & Experts Answers

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

  A: The service process of the fuel injector begins with air cleaner hose and intake air connector assembly removal along with fuel pressure regulator disconnection and fuel inlet pipe separation while catching any fuel leak into a container. Role reverse to remove the fuel pipe after disconnecting the injector connectors and handle delivery pipes and six injectors gently while preventing drops while avoiding any force on the injectors. Use a wrench to eliminate the four bolts and delivery pipes together with the six injectors followed by removal of the four spacers from the intake manifold. Finally extract the six injectors from the delivery pipes and discard the two O-rings and insulator on each injector. During the installation process use new insulators to install the delivery pipes and injectors by treating two new O-rings with spindle oil or gasoline followed by their placement onto each injector before carefully pushing the injectors into the delivery pipes. Begin by directing the connector of the injector outward then mount the four spacers onto the intake manifold followed by setting the delivery pipes containing their six injectors onto the intake manifold while securing the delivery pipes with temporary bolts. Check that the injectors turn without restrictions; otherwise replace the O-rings. Connect the injector connectors after installing the fuel pipe with four new gaskets secured by two union bolts which should be tightened to 34.3 Nm (350 kg.cm, 25 ft.lb). Tighten the four bolts holding the delivery pipes to the intake manifold to 13 Nm (130 kg.cm, 10 ft.lb). Attach the fuel inlet pipe using two new gaskets with a union bolt and bolt for installation, then fasten the clamp bolt to 8 Nm and tighten the union bolt to 34.3 Nm. The procedure includes installing the fuel pressure regulator as well as examining air assist lines to verify proper connections while checking for damage and sharp bending. Finally, start with the intake air connector assembly and air cleaner hose then test for fuel leaks.