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Old 05-10-2010, 03:30 PM
oso oso is offline
'87 300TD
 
Join Date: Oct 2007
Location: San Antonio, TX
Posts: 189
Quote:
Originally Posted by Brian Carlton View Post
I'd like the vacuum in the line from the VCV to the transducer (blue flying saucer). IIRC, the port marked "VAC" has full vacuum applied..........not the modulated vacuum that I'm interested in.

This value needs to be observed while driving the vehicle to determine if the VCV is working correctly. As the rack is opened, the value should fall relatively proportionally to the position of the pedal.
So, it is the line that goes into the bottom part of the transducer that I need to take the measurement at? Before it gets there, there is some kind of switchover valve that the line from VCV feeds into.
Also, should I not have the 12-15 range coming out of the transducer ,at idle, to the transmission regardless?
At this point I'd like to understand how are the vacuum lines supposed to arranged between the VCV and the transducer(blue soucer thingy).
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