Why Does the Carrera S "Rattle" When Starting Cold? - 6SpeedOnline - Porsche Forum and Luxury Car Resource



997 Current model of the 911 C2, C2S, C4, C4S, GTS, Targa and Cabriolet Discussion.
Sponsored By HRE Wheels

Why Does the Carrera S "Rattle" When Starting Cold?

Reply
 
 
 
Thread Tools Search this Thread Rate Thread
  #1  
Old 05-06-2008, 05:29 PM
Registered User
Thread Starter
 
Join Date: Feb 2007
Location: Arizona
Posts: 62
Rep Power: 12
THinthedesert is on a distinguished road
Why Does the Carrera S "Rattle" When Starting Cold?

I've noticed when I start my car & the engine is cold from sitting overnight, it gives sort of a "rattle" sound when it first starts up. I've even noticed a similar sound when I leave a light and may be lugging it a little, or in second gear just crawling around a corner such as I'd di in a residential neighborhood. The sound is not always there, but it does always seem to be there when the engine is cold.

I seem to recall the dealer salesperson telling me that the "S" model does that when it first starts up.

Any comments from those of you that know a lot more than I do would be appreciated.
Reply With Quote
  #2  
Old 05-06-2008, 08:13 PM
Volant997's Avatar
Registered User
 
Join Date: Apr 2008
Location: Northern VA
Posts: 113
Rep Power: 15
Volant997 is a jewel in the roughVolant997 is a jewel in the roughVolant997 is a jewel in the rough
I wondered the same thing. I almost sounds as if a portion of the exhaust system is loose. It goes away after a few minutes and I've never noticed it outside of first starting it up.
Reply With Quote
  #3  
Old 05-06-2008, 08:44 PM
keninirvine's Avatar
Registered User
 
Join Date: May 2007
Location: Blaine, Wa (not in Irvine anymore)
Posts: 2,484
Rep Power: 185
keninirvine has a reputation beyond reputekeninirvine has a reputation beyond reputekeninirvine has a reputation beyond reputekeninirvine has a reputation beyond reputekeninirvine has a reputation beyond reputekeninirvine has a reputation beyond reputekeninirvine has a reputation beyond reputekeninirvine has a reputation beyond reputekeninirvine has a reputation beyond reputekeninirvine has a reputation beyond reputekeninirvine has a reputation beyond repute
My 05 C2S cab did the same at startup. At times I thought it sounded as if it had PSE when first starting. I kind of liked it. My 07 Targa doesn't seem to do it, or at least not as much.
Reply With Quote
  #4  
Old 05-06-2008, 09:27 PM
MartinJF's Avatar
Registered User
 
Join Date: Feb 2008
Location: Nevada City, CA
Posts: 194
Rep Power: 16
MartinJF is on a distinguished road
Mine does the same - the noise goes away after a few minutes, I just don't worry about it, just part of the car's personality.
Reply With Quote
  #5  
Old 05-07-2008, 01:14 AM
500 500 is offline
Registered User
 
Join Date: Aug 2006
Location: earth
Posts: 880
Rep Power: 0
500 is infamous around these parts500 is infamous around these parts
I believe it is due to an emissions device...perhaps an airpump which could cause the rattling/burbling sound.
Reply With Quote
  #6  
Old 05-07-2008, 08:04 AM
CBnAT's Avatar
Registered User
 
Join Date: Feb 2008
Location: Marietta, GA
Posts: 35
Rep Power: 10
CBnAT is on a distinguished road
It's just warning everyone to get out of our way.
Reply With Quote
  #7  
Old 05-07-2008, 08:10 AM
Registered User
 
Join Date: Nov 2003
Location: Bangladesh/Herndon VA & DC
Posts: 7,060
Rep Power: 314
LIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant futureLIL RAJA has a brilliant future
Quote:
Originally Posted by CBnAT View Post
It's just warning everyone to get out of our way.
hahhaaha.

except one person asked me what's wrong with your engine?
lol.
Reply With Quote
  #8  
Old 05-07-2008, 10:03 AM
lig's Avatar
lig lig is offline
Registered User
 
Join Date: Mar 2004
Location: seattle
Posts: 2,228
Rep Power: 356
lig has a reputation beyond reputelig has a reputation beyond reputelig has a reputation beyond reputelig has a reputation beyond reputelig has a reputation beyond reputelig has a reputation beyond reputelig has a reputation beyond reputelig has a reputation beyond reputelig has a reputation beyond reputelig has a reputation beyond reputelig has a reputation beyond repute
Mine sounds like a giant popcorn maker from a cold start.
Reply With Quote
  #9  
Old 05-07-2008, 11:02 AM
Paris_CarreraS's Avatar
Registered User
 
Join Date: Nov 2006
Location: Buenos Aires
Posts: 1,468
Rep Power: 71
Paris_CarreraS is a jewel in the roughParis_CarreraS is a jewel in the roughParis_CarreraS is a jewel in the rough
Quote:
Originally Posted by lig View Post
Mine sounds like a giant popcorn maker from a cold start.
mines too
Reply With Quote
  #10  
Old 05-07-2008, 04:04 PM
Registered User
 
Join Date: Mar 2008
Location: porscheville
Posts: 166
Rep Power: 15
Cloak&Dagger is on a distinguished road
All the 3.8's do it MOST noticably. It's part of emissions; but no worries. She has her own sound.


I love seeing peoples reaction to it when it starts up. Especially the stuffy-up nosed- types. (aka Lexus owners)(snooore!!)
Reply With Quote
  #11  
Old 05-07-2008, 06:30 PM
Registered User
 
Join Date: Oct 2004
Location: East Bay, Northern California
Posts: 247
Rep Power: 23
Andre5 will become famous soon enoughAndre5 will become famous soon enough
Just switched to aftermarket mufflers (Remus) - no more rattle on start up.
Reply With Quote
  #12  
Old 05-07-2008, 06:33 PM
Registered User
 
Join Date: Aug 2007
Location: Scottsdale, Arizona
Posts: 156
Rep Power: 16
GraSox is on a distinguished road
Rattle

I took mine to the dealer twice with the same issue. He said it is normal and I forget exactly the reason but it sounded iffy at best. They told me it was just the "throaty sound of the car"
I then read an article in the PCA mag that a guy wrote on all the little issues he had with his 997 S. The rattle on start up was one of them. He too took it to the dealer 3 times and finally he had them listen to the driver side muffler at start up. It goes away after a minute or two. They replaced the muffler and the sound went away. They said some baffles in the muffler were loose.
I wonder if its a flaw in the muffler some how?
I plan to go back with a copy of the article and see if I can get it resolved......but sounds like it will be a lot of effort to get them to deal with it.
Reply With Quote
  #13  
Old 05-07-2008, 06:48 PM
Dino V's Avatar
Registered User
 
Join Date: Jul 2005
Location: Chicago
Posts: 2,947
Rep Power: 133
Dino V is just really niceDino V is just really niceDino V is just really niceDino V is just really niceDino V is just really nice
My Boxster S does the same thing.
Reply With Quote
  #14  
Old 05-07-2008, 09:20 PM
ZIP22's Avatar
Registered User
 
Join Date: Dec 2007
Location: Bay Area, CA
Posts: 558
Rep Power: 53
ZIP22 has a reputation beyond reputeZIP22 has a reputation beyond reputeZIP22 has a reputation beyond reputeZIP22 has a reputation beyond reputeZIP22 has a reputation beyond reputeZIP22 has a reputation beyond reputeZIP22 has a reputation beyond reputeZIP22 has a reputation beyond reputeZIP22 has a reputation beyond reputeZIP22 has a reputation beyond reputeZIP22 has a reputation beyond repute
Same thing with my TT plus an added bonuses of a puff of black smoke from the turbos...hehehe :-)
Reply With Quote
  #15  
Old 05-08-2008, 03:56 PM
Nugget's Avatar
Registered User
 
Join Date: Mar 2007
Location: Austin Texas USA
Posts: 101
Rep Power: 14
Nugget is on a distinguished road
My 3.8 (with PSE) didn't used to do this, but it started a few weeks ago. It definitely sounds like a loose piece in the exhaust. Goes away once the car has warmed up, but it sure sounds cheap and broken until then.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Vivid Racing : Armytrix Valvetronic Exhaust for 991 Carrera/S vividracing 991 20 06-11-2016 06:26 PM
Vivid Racing : Fabspeed Performance Packages for 991 Carrera. vividracing 991 5 10-21-2015 01:03 PM
Vivid Racing :Armytrix Super Sport Performance Exhaust Porsche 997 Carerra | S vividracing 997 11 10-06-2015 04:43 PM
Pristine low miles 2000 e39 Dinan M5 for sale riverflyer Automobiles For Sale 2 09-01-2015 05:22 PM
Carrera Sport Wheels and Tires for Sale Sterlingc1975 Automotive Parts & Accessories For Sale/Wanted 0 08-22-2015 03:30 PM


Tags
06, 38, 997, boxster, carrera, cayman, cold, engine, exhaust, porsche, rattle, rattling, sound, start, starting, starts

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



All times are GMT -6. The time now is 02:25 PM.