JMB RetrofitsChris Nott
Results 1 to 8 of 8
  1. #1
    jcp
    Reverse Gear

    Status
    Offline
    Join Date
    Feb 2006
    Location
    Wales, UK
    Posts
    10

    Rattle/ tapping noise when idle.

    Hi, I have a loud rattle/ tapping noise when the engine is idle - any ideas what this could be?

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    quattrojames's Avatar
    Moderator

    Status
    Online
    Join Date
    Mar 2008
    Location
    Dorset
    Posts
    13,856

    My Social Networking

    Follow quattrojames On Twitter Add quattrojames on Facebook
    Need a bit more info.

    Diesel or petrol?

    What kind of tapping?

    Where in the engine is it coming from?

    Is it engine speed dependant?

    Does it do it all the time?

    etc etc
    Ingolstance Read about my A6 HERE.

  4. #3
    jcp
    Reverse Gear

    Status
    Offline
    Join Date
    Feb 2006
    Location
    Wales, UK
    Posts
    10
    It's a petrol 1.8T. The sound seems to be coming from towards the back of the engine.

    The tapping is not always there - and seems to go away when the revs raise above 1000 rpm.

    Thanks in advance.

  5. #4
    jcp
    Reverse Gear

    Status
    Offline
    Join Date
    Feb 2006
    Location
    Wales, UK
    Posts
    10
    Just a quick update - audi have suggested that it could be the cam chain tensioner, however they are not sure why the noise is only there on start-up and when the engine has reached 90c.

    Any ideas.

    Thanks

  6. #5
    Broken Byzan's Avatar
    Photographic Moderator

    Status
    Offline
    Join Date
    Apr 2004
    Location
    Cardiff, United Kingdom
    Posts
    12,523

    My Social Networking

    Follow Broken Byzan On Twitter Add Broken Byzan on Facebook Add Broken Byzan on Google+ Visit Broken Byzan's Youtube Channel
    It is common for the cam chain tensioner to give problems. It is exasperated when warm due to lower oil pressure and thin oil, and at start up due to the oil having drained away from the tensioner itself.

    You may also find that your oil pressure itself is a bit on the low side due to partial sludging/blocked strainer.

    How often do you change the oil, and using what type of oil, also has it ever been flushed fully?

  7. #6
    jcp
    Reverse Gear

    Status
    Offline
    Join Date
    Feb 2006
    Location
    Wales, UK
    Posts
    10
    The oil is changed every 20k by audi 5/30 I guess. Do you suggest that I flush the engine before getting the tensioner changed. If so what the best way to do it?

    Thanks

  8. #7
    J7USS's Avatar
    Shuddup Foooool!!

    Status
    Offline
    Join Date
    Oct 2006
    Location
    LEICESTER
    Posts
    3,671
    Have you had your CAT checked????

  9. #8
    jdp1962's Avatar
    Grumpy Old Man

    Status
    Online
    Join Date
    May 2003
    Location
    Cruising on a mountain of torque
    Posts
    5,683
    Quote Originally Posted by jcp View Post
    The oil is changed every 20k by audi 5/30 I guess. Do you suggest that I flush the engine before getting the tensioner changed. If so what the best way to do it?

    Thanks
    I'm not a fan of 20,000 mile oil changes.
    A4 3.0TDi SE Quattro Auto. Factory-fit: RNS-E/bluetooth; F/R parking sensors; full leather/heated front seats; cruise. Retrofit: Remap; Eibach 30mm lowering springs, RS4 RARB; MTEC drilled/grooved discs; 18" RS4 alloys; VW fan washers; Kinetic Digitizor DAB; Blackvue DR380 camera; front armrest; ambient lighting; white LED lights; autodim mirror; Cupra splitter; S-Line door blades; tints; UK pressed plates; MFSW; SDS; TPMS; LED Taillights and DRLs. RS aluminium pedals


 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO