W Reg 306 HDi DTurbo dies under load

Discussion in 'Peugeot 306' started by LennyK, Oct 6, 2008.

  1. LennyK

    LennyK Guest


    When accelerating hard in any gear the car performs OK but suddenly, around
    2500rpm, there is a sudden lack of any acceleration, increased rattling
    noise from engine and black 'smoke' emitted from exhaust. If I then
    disengage the clutch the car returns to tick-over and I am able again to
    accelerate again gently with no noise or smoke. The problem repeats as soon
    as I try to accelerate hard again.

    The car has passed the MOT test today, including emissions, and wondered if
    the symptoms might be caused by failed hydraulic tappet(s)?

    Anybody experienced anything similar and what was the problem?

    LennyK, Oct 6, 2008
  2. LennyK

    malc Guest

    I'm guessing a bit here but the umm...I've completely forgotten the name of
    it....wastegate? Something to do with recirculating exhaust gasses. My
    Xantia turbo diesel (1.9TD not HDi) did something similar but without the
    rattling. Eventually my local garage disconnected the solenoid and all was
    fine. I know it's an older and less sophisticated lump which is why I said I
    was guessing.

    R1100RS old and tatty

    You laugh at me because I am different
    I laugh at you because you are all the same
    malc, Oct 6, 2008
  3. LennyK

    Johno Guest

    Hi I had similar problem on a 406 HDI ( Bosch system ) but without the
    smoke , it was dying out at high revs , it turned out the fuel pump in
    the tank has a very small filter on the base , the most stupid idea I've
    ever seen , they that small they get full of rubbish and restrict the
    flow to the high pressure pump, you have to strip the casing around the
    pump to clean it , maybe worth checking
    Johno, Oct 7, 2008
  4. LennyK

    LennyK Guest

    Thanks for the reply Malc,

    I tried disconnecting my EGR valve but the problem still exists.

    Can you remember if your problem was the EGR (exhaust gas recirculation)
    valve, which is opened by a solenoid to recirculate a bit of the exhaust
    gases back to the inlet manifold?
    Or, was it the wastegate, which I believe routes exhaust gas either through
    the turbo or directly to the exhaust?

    LennyK, Oct 10, 2008
  5. LennyK

    malc Guest

    EGR now that you jog my memory.

    R1100RS old and tatty

    You laugh at me because I am different
    I laugh at you because you are all the same
    malc, Oct 10, 2008
  6. LennyK

    LennyK Guest

    Don't know if anybody is interested but the problem came to a head last week
    with dramatic effect - a cam follower had split along its length from tappet
    to valve.

    It appears that the rattle, under hard acceleration, was the cracked
    follower giving way but when back to tick over the follower returned to
    normal. Finally, the follower broke and the cam follower bearing fell apart
    causing the obvious symptoms of a inoperative valve.

    All 8 followers replaced, oil changed and now car performing as normal maybe
    even better than before the problem arose (£300 garage bill).

    LennyK, Oct 27, 2008
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