passenger side manifold

1997 CHEVROLET CAMARO
10,000 MILES
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WADER1
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Picked up salvaged "stock" passenger side manifold for Z28 in the back near the 02 sensor is a threaded bolt hole and above it is another hole with no threads. What goes into these?
thanks,
weekend mechanic
Sep 23, 2011 at 8:41 PM
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DRCRANKNWRENCH
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It could be air injection tubes, the EGR valve pipe. Or, If it is part of the heat shield, not sure if it has one, the dipstick goes through the manifold.
Sep 23, 2011 at 9:32 PM
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WADER1
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Thanks, I am sending a pic so maybe you get a better idea. Bottom right near the studs.
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Sep 23, 2011 at 10:05 PM
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JACOBANDNICKOLAS
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I believe they are air induction tubes.
Sep 23, 2011 at 10:09 PM
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WADER1
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Thanks, I'll go n that direction
Sep 26, 2011 at 10:58 PM
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CADIEMAN
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a tube from the vacuem pump goes their.if you dont have this you got the wrong part.
Sep 26, 2011 at 11:38 PM