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    Why does my 2010 Holden Combo have reduced power?

    Holden Holden Advice Holden Combo Holden Combo Advice Holden Combo 2010

    I noticed a small reduction in power/acceleration here and there in my 2010 Holden Combo. I am wondering if there is anything I can do to maintain the car?

    Answered by CarsGuide
    9 December 2020
    David Morley

    It’s quite possible for a car’s engine to lose a little performance over time as it wears internally. When that wear occurs, the compression ratio can fall a little, the valve timing may alter a fraction and the fuel injection system might get a bit slack. All these things can lead to a slight drop off in power. Because this dwindling power output happens gradually, most owners never notice it happening.

    But since the Holden Combo was a fairly low-powered car to start with, there could be some external factors that are making it feel a little tardy at times. Again, since you’re not playing with a whole lot of power in the first place (a Combo had just 66kW when it was brand-new) even tyres that have deflated over time (perfectly normal) can make the car feel a bit slower from time to time. The same goes for a brake that is dragging slightly or even having a second occupant or a heavier than usual load in the car. Even a decent headwind can make a Combo feel like it’s struggling.

    The best idea in the long term is to service the vehicle properly and make sure it’s in top condition. That will rule out some of those external factors and will keep the thing in good mechanical condition so that it can muster up the maximum number of kiloWatts when you need them. You could also try a bottle of injector cleaner in the fuel tank now and then, and don’t forget the basics like a blocked air-filter, and old, stale fuel which can also rob power.

    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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