Montero LS 4WD V6-2972cc 3.0L SOHC 24 Valve (1996)
Throttle Body: Service and Repair
Cleaning the Throttle Body
Throttle Body
1. Start the engine and warm it up until the temperature of the engine coolant reaches 80°C (176°F) or higher; then stop the engine.
2. Disconnect the air intake hose at the throttle body side.
3. Plug the bypass intake port inlet (arrow) into the throttle body.
CAUTION: Never let cleaning liquid get into the bypass intake.
4. Spray cleaning liquid from the intake port of the throttle body onto the valve, and then leave as is for about five minutes.
5. Start the engine and race it a few times; then let it run at idle speed for about one minute.
NOTE: If the engine idling speed is unstable (or the engine stalls), let the engine run with the throttle valve slightly open.
6. If deposits are not removed from the throttle valve, repeat steps (4) and (5) .
7. Remove the plug from the bypass intake port inlet in the throttle body.
8. Connect the air intake hose.
9. Using the scan tool erase the diagnostic trouble code or disconnect the negative battery cable for more than 10 seconds and then connect it again.
10. Adjust the basic idle speed.
NOTE: If hunting of the idling engine occurs after adjusting the basic idling speed, disconnect the negative battery cable from the battery terminal for
more than 10 seconds, and then idle the engine again.
