deacceleration hum

1. davidb2002 Infrequent Poster Joined: Jan 2010 Rotherham, South Yorkshire Posts: 229 2001 Posi Blue Saxo VTR

   #1 15th February 2010, 19:56

   Its a wet day today. When I was driving home today I was going down a hill in 5th and let off the accelerator. After a while going down this hill, I noticed a unusal humming coming from the engine. This was the normal humming of the engine, something else. I stuck it into 4th and the hum went away.
   
   any ideas?
2. user_35312 Established Member Joined: Jun 2009 Coventry CV6 Posts: 2477 Slowda Octavia vRS SOLD - Cam'd Chip'd VTR

   #2 15th February 2010, 19:57

   could be the diff/gearbox sort of making a whizzing like sound
   check your gbox oil
3. davidb2002 Infrequent Poster Joined: Jan 2010 Rotherham, South Yorkshire Posts: 229 2001 Posi Blue Saxo VTR

   #3 15th February 2010, 21:53

   im a numpty when it comes to cars. What would happen if i let it continue if it was the gbox oil?
4. JohnRambosCat Regular Poster Joined: Oct 2009 stafford Posts: 299 saxo 1.1, saxo vtr

   #4 16th February 2010, 11:07

   my car was doing this on the motorway not to long ago but no sign of the sound no more
5. davidb2002 Infrequent Poster Joined: Jan 2010 Rotherham, South Yorkshire Posts: 229 2001 Posi Blue Saxo VTR

   #5 16th February 2010, 19:54

   I have heard the sound a bit more today. It seems to happen when I an de-accelerating gently (no brake) and am in 4th or 5th. It even happens when im in neutral at some speed. Once I start accelerating again, im fine. Doesn't happen all the time.
   
   Sounds like its coming from passenger side front in the engine bay somewhere.
6. davidb2002 Infrequent Poster Joined: Jan 2010 Rotherham, South Yorkshire Posts: 229 2001 Posi Blue Saxo VTR

   #6 18th February 2010, 19:47

   I've noticed as well today that it sounds like a rotational sound. In other words, a spinning sound of sorts. Any ideas guys?
7. adam661 Saxperience Forum Bum Joined: Jan 2009 chesterfield (ish) Posts: 2685 icelandic grey 53 vt

   #7 18th February 2010, 19:50

   is it gearbox whine?? does it go when u put the clutch in?
8. user_25927 Saxperience Post Whore Joined: Aug 2008 East Devon Posts: 7472 Clio RS200 Cup, Twingo RS133, Triumph Street Tripl

   #8 19th February 2010, 11:05

   100% its the Driveshaft Intermediate bearing
   
   its when you back off and or put the clutch in, its a sort of ossilating sound. i've had this on my car and replaced the driveshaft was £70 or you could replace the bearing for £20 but i thought £50 might aswell do the whole shaft and its easier to do.
9. davidb2002 Infrequent Poster Joined: Jan 2010 Rotherham, South Yorkshire Posts: 229 2001 Posi Blue Saxo VTR

   #9 19th February 2010, 21:27

   hm, thanks for the input. I noticed today that it putting the clutch in doesn't make a difference, but turning the wheel to the right does.
10. Pearson Established Member Joined: Sep 2009 Doncaster. Posts: 2115 Y' Reg MK2 1.6i VTR

    #10 20th February 2010, 09:22

    Quote:

    Originally Posted by davidb2002 hm, thanks for the input. I noticed today that it putting the clutch in doesn't make a difference, but turning the wheel to the right does.

    I've got the exact same problem with mine, it's fine when i accelerate but once i free roll the car it begins to whine and if i turn the wheel to the right it stops and feels normal again.. ANY IDEAS?.
11. user_25927 Saxperience Post Whore Joined: Aug 2008 East Devon Posts: 7472 Clio RS200 Cup, Twingo RS133, Triumph Street Tripl

    #11 20th February 2010, 09:37

    it is the driveshaft intermediate bearing i had it on my car was really bad and got worse and worse. http://www.saxperience.com/forum/sho...d.php?t=279365
    
    that may help
12. davidb2002 Infrequent Poster Joined: Jan 2010 Rotherham, South Yorkshire Posts: 229 2001 Posi Blue Saxo VTR

    #12 22nd February 2010, 20:30

    Quote:

    it is the driveshaft intermediate bearing i had it on my car was really bad and got worse and worse. http://www.saxperience.com/forum/sho...d.php?t=279365 that may help

    Thanks for that...I have MOT at the end of March and at the moment, im not much of a car person...so im a bit hesitant to do it myself. What might happen if i continue to run on it as is for another month? Or is it best to get this sorted ASAP? I don't want to ruin my car.
    
    David
13. user_25927 Saxperience Post Whore Joined: Aug 2008 East Devon Posts: 7472 Clio RS200 Cup, Twingo RS133, Triumph Street Tripl

    #13 22nd February 2010, 20:35

    Quote:

    Originally Posted by davidb2002 Thanks for that...I have MOT at the end of March and at the moment, im not much of a car person...so im a bit hesitant to do it myself. What might happen if i continue to run on it as is for another month? Or is it best to get this sorted ASAP? I don't want to ruin my car. David

    well it won't do too much damage ,but the noise will get worse and worse and it may sieze. i wouldn't drive it for more than 2 weeks tbh.
14. davidb2002 Infrequent Poster Joined: Jan 2010 Rotherham, South Yorkshire Posts: 229 2001 Posi Blue Saxo VTR

    #14 22nd February 2010, 21:25

    damn, there goes my 2 weeks Best get this booked in.
15. user_33189 Regular Poster Joined: Apr 2009 Lancaster and Bentham Posts: 342 Black Furio (RIP) + JP4GTi

    #15 23rd February 2010, 09:57

    get it sorted, some of your noises and stuff were the same as mine, now my car doesnt move