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    Why has my 2009 Suzuki Swift lost power?

    Asked by Dylan

    My 2009 Suzuki Swift has lost power and, when I come to an idle or when the engines reaches low revs, it starts to jolt. It’s also chomping through petrol way quicker than it should be. What could be the problem?

    Answered by CarsGuide

    3 Mar 2021 David Morley

    Modern engines like the Suzuki’s use literally dozens of sensors to keep the engine’s computer informed on the operating temperature, quality of the fuel, coolant temperature, ambient temperature, camshaft position and lots, lots more. If just one of those sensors starts to offer up false or misleading information to the computer, the whole operation of running the engine can be compromised. That’s when you’ll get rough running and/or stalling as well as the excessive fuel consumption you’ve noted.

    Rather than starting to change sensors on an ad hoc basis (which could take weeks and hundreds of dollars, and even then not arrive at a solution) the best advice is to have the car electronically scanned. At that point, the car’s computer is a good chance to tell the interrogating computer what ails it, and then you can zero in on that component and replace only the parts that are the problem.

    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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