Results 1 to 8 of 8

Thread: Drive Line pulsing noise

  1. 5th May 2022, 07:23 AM #1
    coolum
    coolum is offline Master Supporter
    Join Date
    Apr 2012
    Location
    Coolum
    Posts
    188
    Total Downloaded
    0

    Drive Line pulsing noise

    Just wondering if anyone has an opinion on the following noise.

    D3 V8 New auto box - new tyres - no difference to noise.

    As you accelerate the low frequency pulsing sound develops, then as revolutions increase the pulsing turns to a constant and increasingly higher frequency (still pretty low though)

    When you slip the transmission into neutral the car is quiet and the noise has gone - then back into gear and it returns.

    Thanks in advance for any contributors.
    D3 2005 4.4 V8 HSE java Black.Alpine Roof,Alpaca Leather 7seat,LRSat Nav,E diff,Bi Xenon.Hi-Ice et.voice control.Bluetooth Phone.Kaymar rearbar.Roofrails and Racks.18rims.Traxide Dual Battery towpoint Anderson plug. Xenon 4300k Hbeam.10wled450lightbar.
    Reply With Quote Reply With Quote
  2. 5th May 2022, 09:16 AM #2
    BushDisco's Avatar
    BushDisco
    BushDisco is offline Master Supporter
    Join Date
    Mar 2016
    Location
    Blackburn, Victoria
    Posts
    150
    Total Downloaded
    0
    Rear prop shaft centre bearing?
    Reply With Quote Reply With Quote
  3. 5th May 2022, 12:27 PM #3
    coolum
    coolum is offline Master Supporter
    Join Date
    Apr 2012
    Location
    Coolum
    Posts
    188
    Total Downloaded
    0

    thanks - that would be great.

    Sounds cheaper than a new diff (front or rear) or transfer case for that matter?? as it has 340K on clock - its only a matter of time for these to need a renno.
    D3 2005 4.4 V8 HSE java Black.Alpine Roof,Alpaca Leather 7seat,LRSat Nav,E diff,Bi Xenon.Hi-Ice et.voice control.Bluetooth Phone.Kaymar rearbar.Roofrails and Racks.18rims.Traxide Dual Battery towpoint Anderson plug. Xenon 4300k Hbeam.10wled450lightbar.
    Reply With Quote Reply With Quote
  4. 5th May 2022, 12:33 PM #4
    Eric SDV6SE's Avatar
    Eric SDV6SE
    Eric SDV6SE is offline ChatterBox Subscriber
    Join Date
    Sep 2014
    Location
    Baldivis WA
    Posts
    2,293
    Total Downloaded
    0
    At a steady road speed, does the engine rpm vary? If so it will be your torque converter lock up clutch slipping.

    If rolling along in neutral and noise is gone, unlikely to be prop shaft centre bearing, uni joints or transfer case, as these are still spinning / free-wheeling with the wheels turning.

    Sounds transmission related to me.
    Reply With Quote Reply With Quote
  5. 5th May 2022, 01:09 PM #5
    coolum
    coolum is offline Master Supporter
    Join Date
    Apr 2012
    Location
    Coolum
    Posts
    188
    Total Downloaded
    0

    New Transmission

    I have not noticed any engine rev variation during rolling along.

    I had a new transmission and Torque converter (new in crate - not reconditioned) installed 30K ago it is possible (but hopefully unlikely) to be the problem..

    I have it booked into British Offroad on sunny coast at end of May to review and rectify if found.

    It does concern me that when in neutral there is no 'whine' at any speed - perhaps it is the new tranny. Damn

    Cheers
    D3 2005 4.4 V8 HSE java Black.Alpine Roof,Alpaca Leather 7seat,LRSat Nav,E diff,Bi Xenon.Hi-Ice et.voice control.Bluetooth Phone.Kaymar rearbar.Roofrails and Racks.18rims.Traxide Dual Battery towpoint Anderson plug. Xenon 4300k Hbeam.10wled450lightbar.
    Reply With Quote Reply With Quote
  6. 5th May 2022, 01:21 PM #6
    Eric SDV6SE's Avatar
    Eric SDV6SE
    Eric SDV6SE is offline ChatterBox Subscriber
    Join Date
    Sep 2014
    Location
    Baldivis WA
    Posts
    2,293
    Total Downloaded
    0
    Check the fluid levels. Not sure what box the D3V8 runs, for the D4V6 diesels running the ZF 6 spd, fluid should be dribbling out the fill hole with transmission at 35deg c and engine running to be correct.

    A full fluid flush may help.
    Reply With Quote Reply With Quote
  7. 5th May 2022, 03:22 PM #7
    coolum
    coolum is offline Master Supporter
    Join Date
    Apr 2012
    Location
    Coolum
    Posts
    188
    Total Downloaded
    0

    Thanks

    Quote Originally Posted by Eric SDV6SE View Post
    Check the fluid levels. Not sure what box the D3V8 runs, for the D4V6 diesels running the ZF 6 spd, fluid should be dribbling out the fill hole with transmission at 35deg c and engine running to be correct.

    A full fluid flush may help.
    I will see what the British offroad guys diagnose and get it done.
    Thanks Eric for your input.
    Steve
    D3 2005 4.4 V8 HSE java Black.Alpine Roof,Alpaca Leather 7seat,LRSat Nav,E diff,Bi Xenon.Hi-Ice et.voice control.Bluetooth Phone.Kaymar rearbar.Roofrails and Racks.18rims.Traxide Dual Battery towpoint Anderson plug. Xenon 4300k Hbeam.10wled450lightbar.
    Reply With Quote Reply With Quote
  8. 11th May 2022, 07:14 PM #8
    timdo1
    timdo1 is offline Master Supporter
    Join Date
    Apr 2008
    Posts
    211
    Total Downloaded
    0
    Just rebuilt my transmission by Just Trans in Coburg.

    I too had a vibration that is now mostly gone with a trans rebuild. I still have one that I suspect is the driveline central bearing. Its faint compared to original, but its there.

    I have a long list of issues to deal with but thats gotta be done soon I suppose.

    Check the bearing and the trans.
    Reply With Quote Reply With Quote
« Bizarre sunroof drain problem. | Disco 3 Air suspension broken hoses »

Tags for this Thread

Bookmarks

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
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!