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2002 gmc envoy_slt
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11 Posts
Discussion Starter · #1 ·
hey guys I've got an uncapped vacuum port on the left side of my intake manifold in the front, right next to the intake resonator. any ideas what this is for? The car seems to run ok, but just wondering if it needs a cap. 02 envoy 80k miles.
 

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2002 chevy
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226 Posts
I'm going to look at mine but if it is open I'll cap it. You are letting in god knows what into your engineand with these new engines being controlled by every aspect a little leak will not be good.

Just my :m2:
 
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