User Tag List

Thanks Thanks:  0
Likes Likes:  0
Page 1 of 5 123 ... LastLast
Results 1 to 10 of 47

Thread: Excessive road noise on some roads in Signum Design

  1. #1
    Regular Member
    Join Date
    Feb 2008
    Location
    Hampshire
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default Excessive road noise on some roads in Signum Design

    I recently bought a 2006 Signum Design 1.9CDTi.

    When I test-drove the Signum, it cruised nice & quietly on a dual-carraigeway. There was some road-noise, but no worse that my old 1999 Vectra.

    It now seems that the road I test-drove on was very smooth.

    Having since clocked up some miles, I am frustrated by how noisy the Signum can be, depending upon the road surface. On rough road surfaces, even at speeds as low as 40mph, there is a droning noise, seemingly from the back of the car. When I get to 70mph on such roads, the noise is annoyingly loud. I can tell from the change in noise level when the road surface changes: - this is far more noticeable in the Signum than in my old Vectra.

    The Signum can be quiet at 70mph if the road surface is smooth, so I think the problem is related entirely to road noise rather than anything relating to wind-noise.

    I'm wondering if the problem is just due to the tyres. These are Goodyear Eagle NCT5 215/50 R17 all-round. Has anyone else solved road-noise problems by changing to a different make of tyre? If so, which make of tyre?

    I also wondered if the problem is the low profile of the tyres on the Signum. My old 1999 Vectra had 195/65 R15 tyres and I was quite happy with them. Would it be worth trying to get different size wheels for the Signum so that I could fit higher-profile tyres, in the hope that it might reduce the road-noise? (I realise this could affect handling and insurance, but if I can't resolve the noise problem then I'll have to trade the Signum).

  2. #2
    Regular Member Signum_CDTI's Avatar
    Join Date
    May 2007
    Location
    Somewhere and Nowhere....
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    It's the NCT 5 tyres I'm afraid.
    Got 2 on the back, which are not too bad generally, but can be a bit loud on poor surfaces.

    Got Goodyear Excellence tyres on the front - far better than the NCT 5 tyres that they replaced....

  3. #3
    Regular Member
    Join Date
    Feb 2008
    Location
    Hampshire
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default Just change rear tyres?

    Thanks for the reply.

    My noise seems to come from the rear of the car. So I was wondering about changing just the rear tyres. Do you think this would fix the noise problem?

    (I guess I could end up with the opposite config of what you've got, if I get Goodyear Excellence for the rear, and leave the front as Goodyear Eagle NCT5)

  4. #4
    Regular Member Signum_CDTI's Avatar
    Join Date
    May 2007
    Location
    Somewhere and Nowhere....
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    hmmmm.... what sort of noise is it? tyre on road surface noise or something else?

  5. #5
    [Ex]Admin Duncan's Avatar
    Join Date
    Jun 2005
    Location
    East Sussex
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    From your description, I'd also say the tyres are the likely culprit. I'd change to a different one when you next need to change tyres. If it was a wheel bearing, a possibility, you'd hear it on all road surfaces.

  6. #6
    Regular Member Signum_CDTI's Avatar
    Join Date
    May 2007
    Location
    Somewhere and Nowhere....
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    thats what I was thinking Duncan - poss. wheel bearing, but that surely would show up on all road surfaces, not just the rough ones.

    On most surfaces, the NCT 5 is not bad, but on some, it is awful!

  7. #7
    Regular Member Gsi3.2's Avatar
    Join Date
    Jul 2005
    Location
    Technical directors office
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    yep, simply a combination of road surface type and tyre type..that and the fact that there is no sound deadening on the rear arches which amplifies the howl...

  8. #8
    Regular Member corman's Avatar
    Join Date
    Mar 2007
    Location
    hexham
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default



    i had 2 garages check mine out for the bearings when i first got it, changed rear tyres, problem sorted

  9. #9
    Regular Member Islander's Avatar
    Join Date
    Apr 2007
    Location
    Barrow-in-Furness
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    That sounds exactly the same story as mine, but my Signum has Bridgestone
    Potenzas all round, the road noise on course surfaces is terrible, but as there's
    loads of tread left I'm reluctant to bin them

  10. #10
    Regular Member dave45040's Avatar
    Join Date
    Aug 2006
    Location
    llandudno
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    Quote Originally Posted by Islander View Post
    That sounds exactly the same story as mine, but my Signum has Bridgestone
    Potenzas all round, the road noise on course surfaces is terrible, but as there's
    loads of tread left I'm reluctant to bin them
    My Siggy has the 18" Potenzas all round too and the road noise (on most roads and at pretty much any speed) is far greater than I had on my previous 2 Siggy's (albeit they only had 17" wheels on).

    I am hoping to go to my local dealers to get them to check the wheel bearings in the hope it is that (as they would be covered under warranty). My only other alternatives would be to change the tyres (I dont usually keep my cars long enough to warrant doing this), selling the 18" alloys and finding a set of 17" alloys instead OR changing the car!

    If it is the wheels and/or tyres, should this really be something you should expect to get used to on a car manufacturers' top of the range motor?

Page 1 of 5 123 ... LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. excessive noise and poor performance ?
    By VecPower in forum Vectra C / Signum Troubleshooting
    Replies: 6
    Last Post: 1st March 2012, 08:03
  2. Excessive Road Noise / Rear wheel camber
    By ph67 in forum Vectra C / Signum Car Chat
    Replies: 2
    Last Post: 31st August 2010, 19:19
  3. Tyre noise excessive
    By videodoctor in forum Vectra C / Signum Car Chat
    Replies: 14
    Last Post: 22nd May 2007, 21:25
  4. Replies: 3
    Last Post: 19th February 2007, 17:04
  5. Signum Road Noise
    By decho in forum Vectra C / Signum Car Chat
    Replies: 3
    Last Post: 28th August 2006, 02:09

Visitors found this page by searching for:

Nobody landed on this page from a search engine, yet!

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •