The place to start is by having the diagnostic fault codes read and recorded. The people at many auto parts stores will do that for you for free. If the code relates to a misfire, the code number will indicate which cylinder is responsible, but it will not say why. Be aware that fault codes only indicate the circuit or system that needs further diagnosis, or the unacceptable operating condition. They never say to replace parts or that one is bad. They may try to sell you parts at the part store, but they will only be right about half of the time. First your mechanic will rule out wiring, connector terminal, and other problems before suspecting a part that might be referenced in a fault code.
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Saturday, January 16th, 2021 AT 9:23 AM
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