Browse over 9,000 car reviews

    guides

    adventureguide

    evguide

    familyguide

    tradieguide

    urbanguide

    0 Logout

    Browse over 9,000 car reviews

    Why does my 2007 Toyota Hiace make a whistling noise?

    Toyota Toyota Advice Toyota HiAce Toyota HiAce Advice Toyota HiAce 2007

    My Toyota Hiace 2007 makes a whistling noise when pressing the accelerator pedal. What could be the problem?

    Answered by CarsGuide
    11 November 2020
    David Morley

    I’ll take a stab in the dark here and suggest that your van is a turbo-diesel (there was a petrol version offered as well, but the diesel was much more popular). If that’s the case, you could be dealing with a turbocharger that’s showing wear. Specifically, this is likely to be in the turbo’s bearing which will become noisy (and potentially emit a whistling noise) as the bearing starts to degrade. Turbochargers often spin at speeds of up to 250,000rpm, so the bearing really has its work cut out.

    The clue to all this is that the vehicle starts whistling when you press the throttle; that is, when you place a load on the engine and ask the turbocharger to start providing boost. That’s when the worn bearing becomes loaded (and noisy). But you could also be looking at something much simpler such as an exhaust that has collapsed internally and is offering a whistling soundtrack, or even a loose piece of intake plumbing that is also allowing the air passing over it to whistle. Perhaps there’s something in the gearbox that is making a high-pitched noise as well. You really need to have the vehicle looked at by somebody who knows their HiAces and take it from there.
     

    Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.
    Other Toyota HiAce Problems
    SELL ALL TOYOTA HIACE PROBLEMS
    Related cars for sale on CarsGuide
    See more Toyota HiAces for sale

    Comments

    Have a new question for the CarsGuide team?
    More than 9,000 questions asked and answered.
    Ask now
    Complete guide to Toyota HiAce 2007
    Complete guide to Toyota HiAce 2007 CarsGuide Logo
    Reviews, price, specs and more