Blazer 4x4 not disengaging using lever


Old 06-30-03, 11:30 AM
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Blazer 4x4 not disengaging using lever

I have a 91 Blazer with a 4.3 v6. Under the battery tray is the vaccum setup for the 4x4. If I unplug the vaccum line that runs under the truck it will disengage. What would still keep this line under pressure when I use the lever in the truck? Is there another sensor or link on the transfer case that would keep vaccum on the line?
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Old 06-30-03, 11:33 AM
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Usually a vacuum switch on the transfer case, yes.

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