Check engine light illuminates due to misfireswhen one or more of the spark plugs start to fail or has failed in your challenger, it will cause the engine to misfire and the check engine light may illuminate in the instrume…
Something that has changed about modern spark plugs is that many of them use iridium, don’t need to be gapped, and can last for 100k miles with little issue
That being said, they still can go.
Exact spark plug part number, gap, and torque specs for your 2013 dodge challenger
From my background in fuel chemistry and my long term interest in making engine run well, i pay attention to recommendations about spark plugs and high performance ignition systems.
I have noticed no ignition problems or mileage drop offs during that span, and so no reason to think the spark plugs actually needed to be replaced
However, i wanted to do it anyway just.
Dodge did release a tsb (technical service bulletin) which recommends adding new fasteners and glue to the headliner
If your challenger's engine misfires or hesitates during acceleration, it may be time to replace the spark plugs
If you notice any of these symptoms, it's best to have your.
The symptoms of a failing or bad high pressure fuel pump (hpfp) and how to tell if it has gone bad.
Find out what spark plugs do, the types you can purchase, and what signs to look for that signal when they need to be replaced.