A: The service procedure for air filter box begins with taking out the mass air flow meter. The service process starts by disconnecting the No. 2 ventilation hose followed by opening the air filter box hose clamp then unfastening the air filter box assembly clamp before removing the air filter box cap sub-assembly together with its attached air filter box hose. First disconnect the wire harnesses then remove the air filter box filter element in the following step. Untwist the two bolts to completely separate the air filter box case with its integrated No. 1 air filter box. First remove the intake air resonator and then detach the air filter box hose from the No. 1 air filter box cap sub-assembly after loosening its clamp. The procedure ends by taking the inlet No. 1 air filter box out of its position in the air filter box case.
Q: How to properly install the Air Filter Box on Scion xB?
A: Installation of the 2AZ-FE intake air filter box assembly starts by placing the union tube followed by attaching the No. 2 intake air resonator while tightening its hose clamp. Install the air filter box sub-assembly by using 3 bolts that need to be torqued to 7.0 Nm (71 kgf-cm, 62 in-lbf) and then you can mount the wire harness. Install the No. 1 air filter box hose while securing its clamp and connect both the ventilation hose and No. 2 fuel vapor feed hose. The installation process begins with the air filter box filter element sub-assembly. Then lock the air filter box cap sub-assembly before tightening the No. 1 air filter box hose clamp. Afterward install both the necessary No. 1 vacuum switching valve assembly and mass air flow meter.