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Jug howl from Fuel filler

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04-09-2021, 08:04 AM	#9
preppyr6 Registered User Join Date: Dec 2019 Posts: 14	Dealing with the howling noise since last fall. Replaced the fuel filler vent valve...no change. Replaced the purge valve housing and valves (2 cylindrical valves in black plastic housing)...no change. Kind of annoying having to go in and out repeatedly swapping parts to track this down. No consistent CEL codes, but def affecting idle smoothness.

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