Recent Topics
Source of the Mighty Columbia River
by Snagglefoot
06/22/18 09:32 PM
Sparking discussion - excellent article
by JLTD
06/22/18 09:23 PM
Ethylene Glycol Long Life Coolant for KUBOTA
by pburchett
06/22/18 09:11 PM
Mobil 1 5W-30, 6,200 mi, 2017 2.3 EB Explorer
by Whimsey
06/22/18 08:48 PM
Chevron 10w-40, 97 Nissan Maxima, 3000 miles
by OilGeek91
06/22/18 08:36 PM
Old green antifreeze in garage storage is gelling
by JLawrence08648
06/22/18 08:32 PM
VWs at Pick n Pull
by Eric Smith
06/22/18 08:17 PM
Rotella CK-4 destroys the flat tappet
by Gokhan
06/22/18 08:12 PM
Breaking in new short block
by Bub
06/22/18 07:00 PM
Should I buy a mill or a drill press?
by Vern_in_IL
06/22/18 06:32 PM
Weber Q300 Grill Parts Help
by gathermewool
06/22/18 05:24 PM
I Had To Tell Somebody- Banquet
by Zee09
06/22/18 05:13 PM
Xfinity mobile cell service
by jay929
06/22/18 04:37 PM
Fuse "failure"
by dlundblad
06/22/18 04:32 PM
Do you Bluetooth your phone and car?
by ZZman
06/22/18 04:20 PM
Hastings air filters
by Spitter
06/22/18 04:18 PM
2011 Town and Country remote started itself.
by mrsilv04
06/22/18 04:06 PM
Vaughan Hammer and Superbar $10 Sam's
by hatt
06/22/18 04:03 PM
Denso Oil filter - outsourced / quality changed
by 92saturnsl2
06/22/18 02:37 PM
Bench Drill Press
by Propflux01
06/22/18 02:30 PM
Newest Members
azzid0906, OilGeek91, DRancher, Newuser, Varbill
65299 Registered Users
Who's Online
93 registered (4WD, 69Torino, Ag76, 9050lx, 330indy, 9 invisible), 1438 Guests and 43 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65299 Members
67 Forums
285801 Topics
4769704 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4667794 - 02/16/18 12:03 PM Rattling/chatter noise when letting off the gas
llmercll Offline


Registered: 09/01/13
Posts: 97
Loc: ny
I've noticed this for awhile on my 2003 jetta but just today I noticed it's much worse. When I accelerate there is no noise, but when I let off the throttle I get a loud chatter/rattle. Does anyone know the possible culprits?

I've uploaded a recording.

https://drive.google.com/file/d/1IoelK7sCubi-NhFMOb0JDGT8-ZQMaoH4/view?usp=sharing

Top
#4667820 - 02/16/18 12:27 PM Re: Rattling/chatter noise when letting off the gas [Re: llmercll]
newbe46 Offline


Registered: 01/19/17
Posts: 202
Loc: Ontario, Canada
The heat shield is hitting something?
_________________________
2003 E46 M3 Convertible
2004 Odyssey EX-L
2004 Impreza TS Wagon

Top
#4667851 - 02/16/18 01:04 PM Re: Rattling/chatter noise when letting off the gas [Re: llmercll]
tmorris1 Offline


Registered: 07/15/03
Posts: 2364
Loc: MN
My guess too. Sounds like exhaust rattle of some kind.

Top
#4667902 - 02/16/18 02:23 PM Re: Rattling/chatter noise when letting off the gas [Re: llmercll]
Audios Offline


Registered: 11/19/11
Posts: 888
Loc: Lyndhurst NJ
Loose heat shield or bolt on the exhaust, or the catalyst is breaking up.
_________________________
2002 VW Golf TDI-Mobil 1 5/40 TDT
2005 BMW M3 BMW Twin Power 10/60
1998 BMW M3/4/5 Fuchs 5/40
2007 Mercedes GL320 CDI Fuchs 5/40 GT Pro XTL

Top
#4667969 - 02/16/18 03:26 PM Re: Rattling/chatter noise when letting off the gas [Re: llmercll]
Trav Offline


Registered: 11/20/06
Posts: 18893
Loc: MA, Mittelfranken.de
+3 heat shield.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#4668086 - 02/16/18 05:42 PM Re: Rattling/chatter noise when letting off the gas [Re: llmercll]
dbias Offline


Registered: 12/24/14
Posts: 136
Loc: USA
how are the engine mounts looking. could engine movement during deceleration be making contact with something? do you hear any thumping sounds from time to time?
_________________________
2011 VW JETTA Castrol Edge 0W-40
2012 FORD TRANSIT CONNECT Castrol Edge 5W-20
2016 HONDA CIVIC COUPE Castrol Edge 0W-20
2017 AUDI A4 Ravenol SSL 0W-40

Top
#4671881 - 02/20/18 12:25 PM Re: Rattling/chatter noise when letting off the gas [Re: Audios]
llmercll Offline


Registered: 09/01/13
Posts: 97
Loc: ny
I noticed it happened on a very wet day where my engine was misfiring. It seems to have gone away. Could the misfiring be breaking up the catalytic converter and making this noise?

Top