Q&A for How to Change Fuses in a Car

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  • Question
    What are the reasons why my car's service light engine is on?
    Jason Shackelford
    Auto Technician
    Jason Shackelford is the Owner of Stingray Auto Repair, a family owned and operated auto repair shop with locations in Seattle and Redmond, Washington. He has over 24 years of experience in auto repair and services, and every single technician on Jason’s team has more than 10 years of experience.
    Auto Technician
    Expert Answer
    The illumination of a service engine light typically occurs due to a variety of factors, with the most prevalent culprits being a loosely secured gas cap, insufficient fluid levels, malfunctioning sensors, or the presence of other non-critical issues within the vehicle's system. If you've checked everything and the light is still on, you can bring your car to the nearest car repair shop for a scan to properly diagnose the problem.
  • Question
    Can I remove a fuse and start the car to determine what purpose the fuse serves?
    Akshit Sharma
    Community Answer
    It is most likely written on the fuse box, and is 100% written in the owner's manual, so you don't need to do that.
  • Question
    Do I need to reconnect the battery before replacing fuses?
    Logic Johnson Lafontaine
    Top Answerer
    Yes, it's impossible to check if the fuse is working without having battery power.
  • Question
    Do the fuses in a car tell you which one are to what part in the car they are for?
    Community Answer
    No, fuses will only tell you how many amps they can take. Check the owner's manual.
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