Manual hub conversion — now what about those vacuum lines?


moquiti

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Greetings, having just done a manual hub conversion I was wondering what to do about the vacuum lines and solenoid that controlled the old PVH hubs. I would like to deactivate any unused vacuum lines, but am aware that the hub vacuum system is also connected to the cabin air heater valve and maybe other vacuum-controlled systems(?). I don't currently have any vacuum leaks, and certainly don't want to create new ones. I'm assuming that the manual hub swap didn't create any vacuum issues, but I haven't found anything regarding disabling the lines at the tech page for the swap.

Many thanks!

1998 XLT Supercab 4WD 4.0L Auto, 170K "ST Racing" (whatever that means!)
 


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fastpakr

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Unplug the solenoid and cap off the vacuum lines.
 

moquiti

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So this won't affect the other vacuum system(s)?
 

ericbphoto

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Not as long as you cap the fitting where you remove the line that supplies the solenoid.
 

moquiti

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Thank you very much!
 


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