Z Drivers.I would like to know the location of vacuum pump and if anyone ever test the vacuum tank pressure switch before.

 

You will find it in front of the passenger side tire. It is mounted with two bolts and is just behind the bumper. The tanks switch opens when it reaches it vacuum. It is normally closed sending a ground to the vacuum pump relay (blue). When the key is in ACC 2 or the engine is running, the presure switch does not have a vacuum and the ground energizes the relay turning on the pump. Once the tank reaches its vacuum the switch opens removing the ground to the pump's relay.



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After I removed the vacuum pump I tested to see if it work or not.I also traced the vacuum tubing that was attach to it,apparantly the hose was severved at half way to the vacuum tank.That the reason why I could not locate the pump.
Thank you LEB85ZXT for your respond.