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well still no cure on my 2.7,...I did pull Passenger side intake runner and Alt. to get to the Vacuum parts, replaced the canister, all new line,and fittings also the one way valve to resonance flap, had injector's tested they are fine, new oil tube to engine replaced,new MAF sensor, and of course intake seals,..and it still has a vacuum leak some where you can hear it sucking air, So I disconnected the AOS to intake tube and plugged it.So at idle there's no more hissing. But when I rev it up a bit it starts sucking in air from some where, could the little bellows on the bottom of the AOS cause such a loud sucking sound if its not 100% sealed .My smoke test didn't reveal any major leaks I could see,..But I didn't look underneath the car at that time either.?? Going to the shop soon if I don't find the source of that sucking sound..Thanks Frank
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