Removal And Installation Of Vacuum Hoses

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

To disconnect vacuum hose, pull and twist from the end of the hose. Do not pull from the middle of the hose as this may cause damage.

Fig 1: Identifying Proper Method Of Disconnecting Vacuum Hose
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
When disconnecting vacuum hoses, use tags to identify where they should be reconnected.
After completing the job, double check that the vacuum hoses are properly connected. The label under the hood shows the proper layout.
When using a vacuum gauge, never force the hose onto a connector that is too large. Use a step-down adapter for adjustment. Once the hose has been stretched, it may leak air.

Fig 2: Attaching Tags To Disconnect Vacuum Hose
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002