Attached to carb, what is it for?

[Bandit-CO-]

The carb on my '74 wag is a Motorcraft 4350(I Think). There is something on there that the manual calls a Sol-Vac Holding Solinoid. The only thing the manual says about it is how to test it. What is it for? and how do I adjust it?

Thanks

[gp_frk]

BTT to help our new buddy out. Don Bob Barry some one has to be able to answer this. I searched but could not found anything.

[Don S]

Please don’t quote me on this but I think it was a fast idle set-up for the auto tranny and / or the A/C.. I can look for the part tomorrow and find out ..I took it off a long time ago.. CUL… ;) ds.
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[Cliff]

I think that solenoid has something to do with the rear window motor. Hey, there are stranger things on an FSJ!

[River Beast]

If you are referring to the solenoid on the driver's side of the carb... it is used to step up the idle when the AC is turned on...

[Bandit-CO-]

Thank you RB, that would explain why it was adjusted all the way back. The DSPO removed the A/C pump. Some day I will get it working again. smile.gif