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Thread: Really noisy cdti engine

  1. #1
    Regular Member Shogun's Avatar
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    Default Really noisy cdti engine



    Can anyone give any advice on the loudness of my signum, i appreciate its hard to give advice without hearing it.

    I dont know if its because ive only ever driven petrols, but when i start her up.. jesus its loud, sounds like a tank.
    if im sat in traffic i can hear it from inside the car really bad, it doesnt sound unhealthy if you get me, just extra loud!

    now it is due a service and im having the air filter mod and kn done next weekend, will this help?

    I really thought it was just me and im being paranoid but i got in my uncles 2002 dti vectra, done (140k miles too) and honestly it was so quiet.. i even put the windows down in it and thats whats made me write this thread

    i darnt put the windows down in mine.

    its a 1.9 cdti 150 signum, im hoping the service might quieten it down
    any advice would be great, cheers guys

  2. #2
    North West Regional Organiser paulvectrac's Avatar
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    Vehicle : vectra

    Trim : vxr

    Engine : 2.8 v6 turbo

    Year : 2007

    Default

    Why oil u got in it mate
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

  3. #3
    North West Regional Organiser paulvectrac's Avatar
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    Vehicle : vectra

    Trim : vxr

    Engine : 2.8 v6 turbo

    Year : 2007

    Default

    What oil lol
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

  4. #4
    Regular Member the-wizard's Avatar
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    Vehicle : vectra-c

    Trim : sri

    Engine : cdti

    Year : 2004

    Mileage : 98,000

    Default

    Ive had my 04 cdti 150 from new so i know it!, Ive heard so many different sounding ones its unreal!, One thing i have noticed the early ones sound more ticky/tappy like crap really, But the newer they get the louder they sound but better if you know what i mean?, they have a nice diesel knock to them rather than a tick/tap sound, i heard one yesterday a face-lift & i had to look twice catching the badge & it was cdti 150 but really loud but had a nice tone None of the sounds an earlier on has.

  5. #5
    Regular Member Shogun's Avatar
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    Default

    I really couldnt tell you about oil mate, ive only owned it 6 weeks, the oil looked very black when i checked the dipstick, but it is due a service.

    And yeah it doesnt sound like.. 'somethings wrong' i.e. a hole in the exhaust
    it just sounds like a tank.

    Its a 2006 too so its not the oldest around.. it just annoys the hell out of me when im sat in traffic because its all i can hear

  6. #6
    North West Regional Organiser paulvectrac's Avatar
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    Vehicle : vectra

    Trim : vxr

    Engine : 2.8 v6 turbo

    Year : 2007

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    Change the oil get some 10 w 40 in it mate prob will quite it down abit
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

  7. #7
    Regular Member Shogun's Avatar
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    Default

    Ok Paul thx for that, should be picked up on my service that tho surely?
    Hope it helps it's dreadful

  8. #8
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    I have similar problems with my Vectra 1.9 120. Over the last few months the engine has became a lot noiser than it should. Oil levels have been fine but from start up it is noisy but when driving around with the revs going higher it sounds awful especially inside. If I drive with the window down there is no sound like the exhaust is gone. About 8 months ago I got a new front pipe fitted due to the flexi section being damaged there was a rift noise at the time. After that it was fine but now got this loud noise and instead of the engine been silent at 70/80 mph you hear it badly. I've not had time to check but I wonder if something isn't right with the cat or the front pipe is loose from the cat.

    Also got the ticky noise now which is a pain in the arse so no doubt the Tappet Injectors need replaced if I want the engine sounding smooth.

  9. #9
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    Default

    I have similar problems with my Vectra 1.9 120. Over the last few months the engine has became a lot noiser than it should. Oil levels have been fine but from start up it is noisy but when driving around with the revs going higher it sounds awful especially inside. If I drive with the window down there is no sound like the exhaust is gone. About 8 months ago I got a new front pipe fitted due to the flexi section being damaged there was a rift noise at the time. After that it was fine but now got this loud noise and instead of the engine been silent at 70/80 mph you hear it badly. I've not had time to check but I wonder if something isn't right with the cat or the front pipe is loose from the cat.

    Also got the ticky noise now which is a pain in the arse so no doubt the Tappet Injectors need replaced if I want the engine sounding smooth.

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