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sunflower 06-01-2013 03:25 PM

What is this piece for??
Did first oil change on the 4.7 l and when adding oil into spout see a piece that seems to semi block the fill hole.Why is it in there and what is it for??I just removed it poured 5.7L in and put it back in place,screwed the cap back on:confused:.

hummer recovery team 06-01-2013 04:49 PM

Don't quote me but I believe it's there to control the condensation

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