03 Chevy S10 Vaccum line routing from transfer case switch? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 01-30-2012, 07:48 PM
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03 Chevy S10 Vaccum line routing from transfer case switch?

I'm trying to sort out some burnt / mis-routed vaccum lines on my 03 ZR2. Why does the tranfer case vaccum switch have a 3 line connector. I would think that 1 goes to energize the front axle actuator under the battery - and 1 goes to vaccum source (T off EGR valve on my truck). Where does the 3rd line go?

Also, does someone have a link to a good vaccum diagram for this circuit. I have a Haynes manual and Alldata subscription but neither is much help.


Thanks,
Mike

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Old 02-12-2012, 08:09 PM
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The third hose is the vent for the vacuum when switching back to 2wd
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Old 02-12-2012, 08:15 PM
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Yep, I relized that after I posted. I got it all hooked up right with new lines, connectors and a transfer case vaccum switch.
Thanks!
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