What is this part?
Thread Starter
Pro
Joined: Aug 2014
Posts: 717
Likes: 80
From: Michigan
What is this part?
This part is the reason I'm getting a "helicopter" sound from the engine. Can anyone please tell me what it's called so I can look for a replacement?
Thanks.
Last edited by jjaaam; Sep 16, 2016 at 07:35 PM.
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
part # 561 http://www.tonkinonlineparts.com/sho...riveLine=11515 ... it's basically just a vacuum line for the evap solenoid that reroutes fuel vapors into the intake
Thread Starter
Pro
Joined: Aug 2014
Posts: 717
Likes: 80
From: Michigan
part # 561 http://www.tonkinonlineparts.com/sho...riveLine=11515 ... it's basically just a vacuum line for the evap solenoid that reroutes fuel vapors into the intake
This actually kills two birds with one stone. Not only will this fix the strange sounds I was getting...but since it's evap-based I'll bet you a ton that it is also the root cause for the P0440 codes I have been getting all of a sudden lately...I thought I needed a new gas cap!
Damn mice...
I would assume it would be safe to drive until I get a new part, correct? Or should I let it sit because of the fuel vapors getting expelled into the engine compartment? I honestly haven't smelled any gas the whole time I was trying to figure this out...
Last edited by jjaaam; Sep 16, 2016 at 09:44 PM.
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
yep if you have a code for an evap leak that could definitely be the cause
... you can drive the car as you normally would, it won't harm anything... you can also replace it with a piece of vacuum hose if you wanted to
... you can drive the car as you normally would, it won't harm anything... you can also replace it with a piece of vacuum hose if you wanted to
Last edited by StingrayRebel; Sep 16, 2016 at 09:49 PM.
Thread Starter
Pro
Joined: Aug 2014
Posts: 717
Likes: 80
From: Michigan
Really? Just a piece of hose? Interesting...out of curiosity, then what is the purpose of the "valve" with the green cap on it?
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
I believe it's just a test port to check for leaks but most people will never even use it
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
5 Best & 5 Worst Corvette Daily Drivers
Joe Kucinski
The Headlights of Every Corvette Generation Explained
Joe Kucinski
5 Best & 5 Most Overrated Corvette Track Packages of All Time!
Joe Kucinski
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
Administrator
Joined: Mar 2001
Posts: 368,662
Likes: 24,870
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Got to love the forum - answers for just about any question. 
Melting Slicks
Joined: Sep 2011
Posts: 3,498
Likes: 680
From: The beautiful Alabama Gulf Coast!!
