Question about 1986 Volkswagen Jetta

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Fuel pump How do i know if i need to replace fuel pump i have put in a new fuel filter but engine sounds really rough.

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  • Mike Butler
    Mike Butler May 11, 2010

    Have a fuel pressure test done. Only takes minutes, shouldn't be too expensive. Dies it run rough at idle, down highway, all the time, poor acceleration, hard starting ? When was last tune-up/service.

    Carbureted or fuel injected, engine, it is an 86?



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Hi the only reason you would need to replace your fuel pump is if it is not producing enough fuel preasure to run your engine.

Posted on Jan 29, 2009


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