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Old 01-29-2015, 01:12 AM   #4
j.fro
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Join Date: Feb 2005
Location: Virginia
Posts: 1,369
Garage
Yup, oil filler tube. They are famous for cracking in the "accordion" flex section. Not only does it get messy, but it also creates a vacuum leak that can lead to rough running and a CEL. Replace the whole pipe.
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