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Volvo s80 d5 2.4d - Unexpected Low-Speed Rumbling Hum from Air Filter: EGR, Valve, Timing?

Jabcok20 13167 14
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16766600
    Jabcok20
    Level 18  
    Hello. As in the subject, I have a strange problem, the air filter is well sealed and twisted. More like a rumble, but only at low speed.
    The car is burning and has power, but this sound appeared suddenly.
    What comes to my mind is either a leaky EGR, the valve at the inlet (works evenly) or the timing changed.
    Dpf is rather ok because there are no errors in the computer.
    It remains to check the compression if it is equal and correct. Nothing else comes to mind. The intake flaps are new and the extinguishing flap works, i.e. it extinguishes the car on the computer test.
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  • #2 16768119
    Piasek80
    Level 31  
    SWIRL new but does it work? It's a Volvo - it's not enough to replace it.
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  • #3 16768505
    Jabcok20
    Level 18  
    So what? Adaptation needed? I'm not sure if it works.
  • #4 16768516
    Piasek80
    Level 31  
    What did you diagnose?
    Vida or some universal?
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  • #5 16768649
    Jabcok20
    Level 18  
    Launch x431
  • #6 16768731
    Piasek80
    Level 31  
    Vida Dice.
    Universal ones do not fully embrace premium brands, especially flagship models.
    Are you far from Poznań?
  • #7 16769030
    Jabcok20
    Level 18  
    Not without exaggeration. Easy and will look at the parameters of the swirl controller, whether the lever moves while driving or even when stationary.
    How n will work I will try cdif 3.
  • #8 16814422
    klimpit
    Level 1  
    Hello. And what about that rumble because I have the same problem.
  • #9 16815316
    Jabcok20
    Level 18  
    I don't know the client drives. So far, he is not doing anything with the car ...
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  • #10 16909278
    aletomek76
    Level 2  
    Hi,

    did that humming explain?
    I have this exact problem
  • #11 17300361
    sirtrojan
    Level 11  
    the hum is from the fallen pushrods - part of the compression is pounding in the intake - especially audible at the left wheel.
    to replace the pushrods and levers. For days I will do it at home, I will write what and how.
  • #12 17303561
    aletomek76
    Level 2  
    how did you come to this? are you doing it in an authorized one? what the cost

    I noticed that since this problem appeared, the car burns more,
  • #13 17303643
    sirtrojan
    Level 11  
    is a popular failure in 163 HP the pushers fall and the more powerful 185 can break their seats.

    In general, the car drives, but it works louder and rumbles.

    The robot is disassembling the top, so injections (prepare new copper washers), hoses, etc., disassembling the covers, so there are 2 gaskets - the set is from PLN 155 and above.
    Then you have the rollers on top, so dismantle them (you can also cover the seals). Volvo pushers are also not cheap, but there are those that they put in from other engines - and everything works as it should, but for half the price!

    Here you have a link what and how to do - the problem is that in Russian :) https://www.drive2.ru/l/10231705/
  • #14 17337282
    aletomek76
    Level 2  
    have you made these pushrods and levers yet?
  • #15 17394709
    sirtrojan
    Level 11  
    No - I bought all the stuff but I guess I'll part with the car and give it to a new buyer. I fixed some other things - incl. I sealed the servo: the vacuums went up, it brakes better and the variable turbo geometry also stands up better.

Topic summary

The discussion revolves around a Volvo S80 D5 2.4D experiencing an unexpected low-speed rumbling hum, suspected to be related to the air filter, EGR valve, or timing issues. Users suggest checking the swirl controller and compression, with some mentioning the use of diagnostic tools like VIDA and Launch X431. A recurring theme is the potential failure of pushrods, which may cause increased noise and power loss. Several participants share their experiences with similar issues, discussing the costs and procedures for repairs, including replacing pushrods and levers, and the importance of using genuine or compatible parts.
Summary generated by the language model.
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