Question about 2005 Peugeot 405

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I have a 307 d-turbo, when i switch the engine on and accelerate the main air feed pipe runnig accross the front of the engine collapses, starving the engine of air

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  • stu_aitken_1 Jan 12, 2009

    yeh it stuggles when u press the accelerator it collapses the hose! i have discoonected the pipe at the end of the part next to the radiator at the bottom, and it runs fine, so the air filter is good to check out? where does the hose run to at the engine?

  • stu_aitken_1 Jan 13, 2009

    Hi the hoses have oil in them but not full of oil. What is the problem and solution? I removed the air filter and this seemed to help for a while, but then the hose collapses again. Is it the intercooler that is next to the radiator? what is the breather system etc?



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Could just be a soft / collapsed hose but check the air filter and intake for blockage or just a really dirty air filter. It the engine struggles to draw air it will collapse hoses.

Posted on Jan 12, 2009

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  • John Muir Jan 13, 2009

    To the intercooler. Check its not full of oil from the breather system. Remove hose at bottom of intercooler. Sick something under it just incase you end up with oil everywhere.


  • John Muir Jan 14, 2009

    The oil may just be an accumulation over the years. Drain it and monitor over the next few months. Can be a sign of breather back pressure from a worn engine or turbo problems. Like I said though don't be paranoid about it. If hose still collapses after filte rchange etc. replace it or cut it and fit a sleeve with two hose clips where it collapses. It may now just be that it has collapsed that many times that its lost its rigidity
    Cheers John

  • John Muir Jan 17, 2009

    Any chance of a rating.




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