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12-19-2012, 11:07 AM | #1 |
Registered User
Join Date: Feb 2007
Location: Blairsville, PA
Posts: 301
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Installing a 4.8 vortec
I'm using a 4.8 vortec from a 2007 GMC. Right behind and above the main air intake is a plastic line with a green cap probably to test pressure of something. There is also a place to plug wires into. Anyone know what this does? Thanks
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