Thanks for the additional comments, explanation and picture, Dave! Much appreciated. Yup, that big left side controls the "metering" part of the valve and does what Dave said. I also read this explanation somewhere but could not find it to add to my comments. Hopefully, we have a much better understanding of how the Combination Valve ("Proportional Valve") works now.
BTW, I have one valve left, but if we need more, I can always make a trip back to Pick-N-Pull and pull off some more. Also, keep this in mind... If you do not want to install the LED in your car that Dave talks about (I need an LED, Dave!), I can pull off some of the Combination Valves that did NOT have the electrical connection on them. I saw a good number of those on Mustangs and other Ford cars.
JohnG, can you grab this thread and put it in the TRL for future use by others?
Last edited by YellowRose : 11-27-2009 at 12:03 PM.