What happens if spark plugs are not properly installed?
Installing a spark plug incorrect is most likely caused by the gap of the plug is incorrect or hit when installing it closing the gap. The spark plug may also get cracked when installing the plug. After any of these mishaps with the spark plugs you will have a bad engine misfire, hard start, hesitations and jerks and the check engine light will come on. A mechanic like one from YourMechanic can come to you and perform a spark plug change or most any kind of maintenance work you need.
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