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Weird engine noise, please help

Discussion in 'Motors' started by Phil Biscuit, 5 Jul 2021.

  1. Phil Biscuit

    Associate

    Joined: 5 Jul 2021

    Posts: 16

    Location: UK

    Hi, not sure if this is the place for this type of post but here it is anyway. Bought a used 2010 Kia Ceed 1.6 diesel a few weeks back and I've noticed an odd clacking noise when accelerating at low speeds. I've uploaded a video of the noise here, it's best heard near the end of the video. Sometimes this noise is very loud, other times it's not as such. It doesn't make this noise at all when idling, only under load and even then it doesn't happen all the time. Any ideas of what it might be?
     
  2. Finglonga

    Wise Guy

    Joined: 20 Aug 2008

    Posts: 1,844

    Location: Stafford

    Hard to tell from a video but it Sounds like it may be over fuelling, is it a diesel knock or from somewhere else?
     
  3. Phil Biscuit

    Associate

    Joined: 5 Jul 2021

    Posts: 16

    Location: UK

    I've taken it to a local garage and they've said it's most likely due to dirty fuel injectors. No engine light and it still seems to get pretty good mpg (60+ on motorway) so I'm dubious of this. Definitely coming from the engine bay though.
     
  4. gc123

    Wise Guy

    Joined: 19 Dec 2002

    Posts: 1,437

    after you have driven it and open the bonnet is there any mist above the engine? i know theres probably a engine cover but maybe worth removing it and seeing if anything is damp around the injectors? maybe when warm the injector is blowing had similar when injector clamps started to get loose on wifes honda managed to catch it before it popped the injector she stated it got noiser in the weeks before she mentioned it but again no lack of power or anything. just a thought,
     
  5. Phil Biscuit

    Associate

    Joined: 5 Jul 2021

    Posts: 16

    Location: UK

    Had a look under the engine cover around the injectors and there's no smoke or dampness. Maybe something else worth mentioning is the car seems to judder a bit when accelerating at low speeds when the engine isn't warm. Runs just fine after warming up
     
  6. Spleen Sauce

    Wise Guy

    Joined: 16 Jan 2005

    Posts: 1,681

    Location: UK

    Does it happen at specific speeds or only at certain revs?

    Do you do a lot of short journeys in the car?
     
  7. Rroff

    Man of Honour

    Joined: 13 Oct 2006

    Posts: 78,414

    Know anyone with an OBD reader?
     
  8. Phil Biscuit

    Associate

    Joined: 5 Jul 2021

    Posts: 16

    Location: UK

    I only use the car for a 50 mile commute which is entirely motorway driving. There’s 93000 miles on the odo and 1 previous owner, not sure what they used the car for. The clacking only happens sometimes at low speeds when accelerating, after I put my foot down it goes away and the car runs fine. I bought an OBD reader and the car isn’t sending any codes
     
  9. Rroff

    Man of Honour

    Joined: 13 Oct 2006

    Posts: 78,414

    Sounds like what my sister had but I can't remember what the code was - basically throttle regulation wasn't getting feedback or something.
     
  10. Hodders

    Mobster

    Joined: 18 Oct 2002

    Posts: 4,548

    Location: Riding my bike

    If bought from a dealer, get them to sort it! Good luck, these things are frustrating!
     
  11. Phil Biscuit

    Associate

    Joined: 5 Jul 2021

    Posts: 16

    Location: UK

    I’ve been trying but they keep telling me it’s just a Diesel engine thing. Unless I find the cause for the noise, they won’t touch it. Terrible service :/
     
  12. Spleen Sauce

    Wise Guy

    Joined: 16 Jan 2005

    Posts: 1,681

    Location: UK

    Not ideal, is it a main Kia dealer or an independent?
     
  13. Phil Biscuit

    Associate

    Joined: 5 Jul 2021

    Posts: 16

    Location: UK

    Independent place out near Birmingham called ASM Car Sales
     
  14. Spleen Sauce

    Wise Guy

    Joined: 16 Jan 2005

    Posts: 1,681

    Location: UK

    I guess my approach would be, ask them if they're willing to accept the bill if you were to go to Kia to get it checked out and they found a fault. If so, pay for Kia to do the diagnostic and go from there. If they come back and say it's fine then you've only lost a few quid, if there's a fault then you get it nipped in the bud by the dealer you bought from.