Hello, I drive a 2013 Dodge Charger SE with 160000 miles on it with the 5-speed automatic transmission and the 3.6L VVT Pentastar engine. I have had 0 problems with the car until very recently. There is an intermittent misfire occuring on Cylinder 3 giving me a P0300 code. Took it for a tune up thinking it needed spark plugs, but turns out the plugs are not the issue. There are no vacuum leaks or any of the other normal, easy to fix problems. Firestone told me I had to take it to the dealer for an engine analysis. Any idea what the problem could be and the potential repair costs for that problem? Also want opinions on if I should just move on. I've never had any problems with any chrysler products until this.
Edit: Also forgot to add that the misfire only occurs at low RPMs/Idle. Car accelerates and Drives perfectly fine.
There are no vacuum leaks or any of the other normal, easy to fix problems
please list everything you tried.
try swapping the injectors around.
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The injectors, spark plugs, and ignition coils were all swapped around and the misfire still occurred on Cylinder 3
How do you know it's only misfiring in Cyl 3?
Code P0300 usually means multiple-cylinder misfire.
You might want to try a compression test.