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    There is a tapping noise from the motor of my 2007 Nissan Navara

    Nissan Nissan Advice Nissan Navara Nissan Navara Advice Nissan Navara 2007

    There is an intermittent tapping noise from the motor of my 2007 Nissan Navara. It's pronounced on startup, then fades away when run for a short while. It re-emerges now and then. The motor is a 2.2 diesel with 128,000km and no off-road work. It does tow a five-metre aluminium boat.

    Answered by CarsGuide
    17 January 2024
    David Morley

    This sounds like a classic case of a hydraulic lifter (also called a lash adjuster) that is dying a slow death. These components rely on engine oil pressure to maintain the correct clearance between the engine valves and the rockers that actuate them, and any wear will show up as a ticking noise when the engine is first started and is still building oil pressure. They can often 'tick' for a few seconds or more before going quiet.

    The recurrence of the noise has probably got something to do with a fall in oil pressure at idle when the engine warms up, allowing the lifter to start ticking again. But the engines in this series of Navara were also known for ticking or rattling noises as the result of worn camshaft-chain tensioners, broken or damaged cam bearing bolts and wear in the auxiliary pulleys and belt tensioners. If the noise does turn out to be a dud lifter, do the smart thing and replace them all, as wear in one means certain wear beginning in the others.

    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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