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Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by greg83k5, Mar 21, 2002.
where is that little booger supposed to be hooked up to?
The vacuum side should be hooked up to manifold vacuum. That means pretty much any port as long as it isn't ported vacuum. Manifold vacuum is the vacuum that is felt in the manifold which is underneath the throttle blades and ported vacuum is felt right above the throttle blades. So at idle you will have more vacuum under the throttle blades and little to no vacuum above them. The electrical side is tied into the brake switch and +12VDC. Here is a simple wiring diagram that will work http://www.700r4.com/Tech/TCC/TccEnergizedBosch.pdf
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