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fuel system service

  1. is the throttle body connected to the mass air flow sensor?

    Care, Maintenance & Service - Chevy Volt
    Took my 2013 Volt to the dealer to get an oil change. They told me that at 70k miles, I needed a 3 part fuel system service: Clean the throttle body, fuel injection and add some additive. I should have come here first, but trusted the dealer.... Three days after the service, my battery runs...
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