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Get round to take a look at this problem and there is a tip or 2 I can share with the forum. The green line goes to the 5 control solenoids behind the Climate Control. It is a challenge to find out which one of the 5 pods is leaking. I find a quick way to do it.
1) Remove the 5 holding screws on the CCU faceplate. Move CCU aside but do not undo the 2 big plugs on either side.
2) T the Mityvac to the green line
3) Unplug ALL 5 connectors to the vacuum control solenoids.
4) Start the car and monitor the vacuum level, the level should be normal as all the vacuum solenoids are off ( not connected ).
5) Plug the connector back in one at a time. The vacuum would drop once the connector associated with the leaky pod is re-connected. You may need to vary the CCU setting to make sure the control solenoids are activated.
6) Optional - It is also possible to hook up 12v to the solenoid with a spare connector as the CCU setting may or may not energize the solenoid.
7) This method saves me a lot of time as the vacuum tube is a PITA to get to behind the CCU and I do not want to remove the glove box panel to test the pods.
I managed to locate solenoid number 1, the left-hand most one. The vacuum dropped once I re-connected the solenoid. It was so easy to identify the culprit. The pod is underneath the driver panel.
Any one can tell me what does #1 pod control?
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