2016 4.3 Catch Can Help

[Garype91163]

Hi, New sierra owner here. I just got a 2016 Sierra 1500 with 54,000 miles on her. I bought a ADD W1 V3 catch can and I am having trouble with the instructions. Is there a difference in the routing between the 5.3 and the 4.3? I emailed ADD and they sent me a generic YouTube video. Maybe I am missing something or blind, but the instructions and video don't seem to match my truck. Thanks for any help you guys or Gals can give me. Thanks Gary

[HeySkippyDog]

Did you figure out which factory hose to remove?

Should be one that connects somewhere above the throttle body and goes along the drivers side of the engine.

The "inlet" side of your catch can connects to the port near the TB and the outlet side connects to the really hard to reach fitting on the drivers side of the engine.

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[Garype91163]

I see the connection that goes from the front of the intake(near throttle body), it goes across the valve cover and down behind the engine near the firewall (driver side). There is a line that goes from the upper part of the intake to the valve cover(driver side).

[Garype91163]

Fixed !! I looked on Youtube for a 4.3 Silverado catch can and found a video that covers all of the 2014-2018 truck engines. The routing for the 4.3 is the connection on the middle upper intake to the valve cover(driver side).Thank You HeySkippyDog for your reply .