How To10/16/2010 4:06 am:Fix error code P0300 for random misfires on your car Error code P0300 is one of the most infamous in auto maintenance, indicating random misfires in the engine. This can mean several different things, and in this video mechanic Scotty Kilmer will teach you ho...
Truck has an active P0300 code and runs very rough. Found that all passenger side cylinders are not firing. Only running on drivers side cylinders. Driver reported this occurred suddenly while driving down the highway. Truck ran fine before that. Not sure which direction to go from...
But note that just because you get the above codes doesn’t guarantee that a bad PCV valve is indeed the culprit for your issues. These codes can also be triggered by problems elsewhere. Therefore, after the code reading, do not proceed to replace the PCV valve right away but pay attentio...
A random misfire problem (code P0300) means the misfire is jumping around from cylinder to cylinder and that multiple cylinders are experiencing a misfire problem. This is usually due to a lean fuel condition which, in turn, is being caused by a vacuum leak, an air leak in the intake man...
A "random misfire code" (P0300) is even harder to diagnose because there can be numerous causes. A random misfire usually means the air/fuel mixture is running lean. But the cause might be anything from a hard-to-find vacuum leak to dirty injectors, low fuel pressure, a weak ignition ...
Ignition problems are the biggest reason vehicles would crank but not start. Without a spark, an engine will not start – it cannot. Your vehicle probably has codes related to misfires stored already, such as P0300, P0301, and more. Ignition problems can be caused by a plethora of things...
Once you’re confident your vehicle has a misfire, try plugging an OBDII code scanner into the port beneath the dashboard on the driver’s side. It will look like an open trapezoid-shaped plug with rounded edges. Turn the key to the accessories setting on the ignition and turn on the sc...
A misfire that occurs in a given cylinder will set a P030X code where "X" will be the number of the cylinder that is misfiring. For example, a P0302 code would tell you cylinder number two is misfiring. But here's the important point: The code does not tell the technician why the ...