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    Alternator could be cause of globe issue for Outback

    Subaru Subaru Advice Subaru Outback Subaru Outback Advice Subaru Outback 2010
    With reference to the reports of blown globes on a Subaru Outback I would suggest that a higher than normal alternator output voltage is the likely cause. This could be due to a failure of the voltage regulator. Apart from a manufacturing defect, a higher than normal voltage supply is usually the only reason new light globe filaments, whether car or household, constantly fail prematurely. A check with a DC voltmeter at an engine speed of 1500 rpm should show close to 14 (+/- 0.5) volts output. Which brings to mind the fact that many modern cars no longer have voltage, oil pressure, or temperature gauges to indicate to the owner this type of variation from normal.
    Answered by CarsGuide
    28 October 2010
    Carsguide.com.au

    Anyone having problems with blown globes would be well advised to have the alternator output checked as suggested.

    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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