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    Mazda BT-50 2016: Rattling when cold started

    Mazda Mazda Advice Mazda BT-50 Mazda BT-50 Advice Mazda BT-50 2016

    My Mazda BT 50 2.2-litre turbo-diesel rattles excessively on cold start up, much worse under load, but the motor runs normally again once it reaches operating temperature. This rattle was not evident when I first purchased the vehicle having developed not long after about 5000 km. Mazda suggests it may be an injector causing the rattle. What do you think?

    Answered by CarsGuide
    20 May 2016
    Graham Smith

    Mazda’s advice is probably on the money. Worn injectors are a common cause of a rattle on cold starts on common-rail diesel engines like you describe.

    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.
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