OEM 2003 Toyota Echo Throttle Body

2003 Toyota Echo Throttle Body Parts Q&A

• Q: How to service and repair the throttle body on 2003 Toyota Echo?

  A: The service and repair process of the throttle body requires coolant drain first as a starting point. Start by disconnecting the accelerator cable after which you should remove the air cleaner hose and cap by untightening 2 air cleaner hose clamp bolts and disconnecting the hose from the throttle body and air cleaner cap. Start the throttle body removal procedure by disconnecting the throttle position sensor connector together with the IAC valve connector and PCV hose and 2 water bypass hoses. First remove the bolt along with the 2 nuts and throttle body from the intake manifold in order to detach the accelerator bracket and throttle body before removing the throttle body gasket. Examine the throttle valve by verifying the throttle stop screw has no space with the throttle lever closed and test the throttle position sensor through resistance measurements between the terminals with an ohmmeter. The installation requires securing the throttle body and accelerator cable bracket by bolting them up with the bolt and 2 nuts while tightening to 30 N.m (305 kgf.cm, 22 ft.lbf). Secure the connection between the throttle body and its attached water bypass hoses and IAC valve connector and throttle position sensor connector and PCV hose. The last step consists of replacing the air cleaner hose and cap followed by engine coolant addition into the radiator.