OEM 2007 Toyota Avalon Fuel Injector

2007 Toyota Avalon Parts Questions & Experts Answers

• Q: How to remove and install the fuel injector assembly on 2007 Toyota Avalon?

  A: The first step to remove the fuel injector assembly is to stop fuel from leaking then detach the battery negative terminal and drain all engine coolant. The service procedure starts by removing the windshield wiper arm and blade assembly on both sides followed by the right cowl top ventilator louver and windshield wiper motor & link assembly and cowl top panel outer. The V-bank cover sub-assembly can be removed by releasing the clips in order from A to B followed by taking off the air cleaner cap together with the air cleaner hose by disconnecting the 3 vacuum hoses, ventilation hose No.1, air flow meter connector, fuel vapor feed hose No.1, and unfastening the hose clamp bolt then removing the 3 clamps. To remove the intake air surge tank you need to detach water by-pass hoses and vapor feed hose as well as throttle with motor body assembly connector and clamp and ventilation hose No.2 and union to check valve hose and the vacuum hose clamp before using a 5 mm socket hexagon wrench to remove 4 bolts followed by 2 nuts and 2 bolts then taking off the gasket from the intake air surge tank. Detach the fuel tube sub-assembly by removing Fuel Pipe Clamp No.2 followed by slow extraction of the fuel pipe under circumstances that prevent connector contamination by dirt. You must disconnect six fuel injector connectors from the assembly before removing the five bolts then extracting all fuel injectors from their position within the delivery pipe. Install new O-rings on each injector first before drenching both injector contacts and delivery pipe region with spindle oil or gasoline before inserting the fuel injectors into the pipe through twisting. Set an installation process through this order: install new insulators on the intake manifold leading to placement of the fuel delivery pipe with injectors followed by brief bolt installation then advance the 5 bolts to 21 N.m torque (214 kgf.cm and 15 ft.lbf) before proceeding with 6 fuel injector connector connection. Secure the fuel tube sub-assembly through tube connector application until it clicks and check both for damage or foreign objects before putting on fuel pipe clamp No.2. Install a new gasket to the intake air surge tank before securing it with 4 bolts to 18 N.m torque (184 kgf.cm, 13 ft.lbf) and attaching it with 2 nuts and 2 bolts to 16 N.m (163 kgf.cm, 12 ft.lbf) for nuts along with 21 N.m (214 kgf.cm, 15 ft.lbf) torque for bolts. The procedure involves installing the air cleaner cap with its air cleaner hose followed by clamping the hose with a torque of 5.0 N.m (51 kgf.cm, 44 in.lbf) before connecting all hoses and connectors. After reattaching all cowl top components including the outer and wiper motor and link assembly and ventilator louver and both windshield wiper arms with blades you should add engine coolant, reattach the battery cable negativity terminal and check for leaks before installing the V-bank cover sub-assembly by clip engagement from A to B followed by performing system initializing after terminal disconnection.