where are all vacume hoses located on this truck

1997 GMC SIERRA
20,000 MILES
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GHHILLBILLY
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i have a vacume leak and am trying to find it but i need to know where to look i need vacume hose diagram thanks
May 11, 2012 at 4:15 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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