OEM 2001 Toyota Highlander Fuel Injector

2001 Toyota Highlander Parts Questions & Experts Answers

• Q: How to replace a fuel injector on 2001 Toyota Highlander?

  A: The first step in fuel injector replacement requires preventing the emission of gasoline. After removing the air cleaner cap and air cleaner hose separate the fuel tube sub-assy at location [23901 / 98-40]. When removing the fuel delivery pipe with the injector always exercise caution to prevent drops of the injectors. The first step to replace the fuel injector begins by disconnecting each injector connector from its position then taking out the delivery pipe through removal of the two clamps and wire harness followed by unscrewing the two bolts. The procedure now requires the removal of the two spacers existing on the cylinder head. The four injectors need to be pulled from delivery pipe assemblies classified as [23250 / 98-40]. Install new insulators on each injector followed by the application of a light spindle oil or gasoline layer on your new O-rings before installing them and lubricate the delivery pipe O-ring area with spindle oil or gasoline. Executing clockwise and counterclockwise motion on the injectors enables their placement into delivery pipes yet one should prevent twisting the O-ring while confirming smooth motion until you replace any non-rotating injector with a new O-ring. Position the injector connector downward. The installation of the fuel delivery pipe with its four injectors requires mounting two spacers on the cylinder head and position the delivery pipe with the installed injectors before temporarily installing two bolts to secure the delivery pipe and checking injector movement; the O-ring needs replacement if injectors fail to rotate freely. Familiarize the injector connector by revealing it outward before tightening the two delivery pipe bolts on the cylinder head to a torque of 20 N.m (204 kgf.cm, 15 ft.lbf). The inspection concludes with a check for fuel leakages.