P0300
Asked by frankel May 29, 2019 at 08:57 AM about the 2007 Dodge Charger R/T RWD
Question type: Maintenance & Repair
I hve a 2007 dodge charger rt with the po300 code,
i drove it for a month with the cel blinking, the i
change all spark pligs , coil , fuel injectors,
cranshaft sensor , the only thing i notice i here
rattling noise from the catalytic converter, to get to
the point i still getting the cel blinking.
3 Answers
Things i replaced ; all oxygen sensors, coolant remperature sensor, fuel injectors, plugs , coils, fix a gasket leak it had,cranck shaft sensor. Last thing i did from the lost was the pligs and the coils the car turned on perfect, had no trouble for like 3 days now , but it will misfire randomly amd then just disapears
I will get the car checked but still you dont have any idea of something am missing the car when its not mosfiring runs like a beast so i dont think it has internal engine damage
After 1.5 years troubleshooting for my 3.5L 2008 Charger with P0300 code, finally got rid of that hard to tshoot code. The answer is: Valves. I just removed the heads and replaced all valves, there is a noticeable carbon accumulation on the exhaust valves, and there is a tech bulletin regarding this carbon accumulation affecting valve performance causing P0300 code. Before head removal, I changed spark-plugs, EGR valve, all 6 coils, cleaned injectors with ultrasonics, without any success. At the end is a costly repair but worth it
