Under the front camshaft caps that house the ocv's. It's best to do your timing service at the same time since it needs to be removed to get the caps off.
The underside of the throttle body.
by oil pan
Remove the throttle body. Remove the 4 IAC mounting screws. Remove the IAC.
Could be the auto idle control valve, try cleaning before replacing (about $300). Another simpler possibility is the fuel filter,replace this first,
s.b. at the top of the cam cover, will have an elec. lead to it.
To replace the heater control valve in a 1996 Lexus LS400, first, ensure the engine is cool and disconnect the battery. Drain the coolant from the radiator, then locate the heater control valve, which is typically found near the firewall on the passenger side. Disconnect the hoses connected to the valve and remove the mounting bolts to take out the old valve. Install the new valve by reversing the process, ensuring all connections are secure, and refill the coolant before reconnecting the battery.
The PCV valve for a 2000 Lexus rx300 is on the passenger side of the engine. It is on the valve cover near the back.
The PCV valve on a 2002 Lexus RX300 is located on the passenger side of the car underneath the hood. The valve will be on the rear valve cover.
How to replace the tire pressure valve on lexus rx 350?
its behind the air filter
right above the oil filter
In a Lexus LX470, the idle control valve is typically located on or near the throttle body. To access it, you may need to remove the air intake duct and other components that obstruct the view. The valve is responsible for regulating the engine's idle speed, ensuring smooth operation. For precise details, consulting the vehicle's service manual or a repair guide is recommended.