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droppedgmc · 03-25-2008, 06:37 AM

hmm, i have one on my 00' 4.8 and have no probs. maybe the gasket didn't seat right. sounds like a vac leak

03-25-2008, 06:37 AM	#2
droppedgmc Truck Enthusiast Join Date: Dec 2006 Location: Arlington, WA Posts: 1,346	Re: throttlebody spacers hmm, i have one on my 00' 4.8 and have no probs. maybe the gasket didn't seat right. sounds like a vac leak __________________ '85 swb