We bought this about two weeks ago. 05 Laredo, 46,000 miles, meticulous service records. I am getting an intermittent, like every couple of days, P0300 code - random cylinder misfire. It had plugs at 35,000 miles. I haven't checked them but that shouldn't be a problem unless they put the wrong plugs in (platinum instead of copper).
Jeep Grand Cherokee & Commander Forums. a P0300 Multiple Cylinder Misfire will set. Posible causes: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6 SOURCE: my 2001 jeep grand cherokee laredo is having. P0300 Diagnostic Code - Random/Multiple Cylinder Misfire Detected Basically this means that the the car's computer has detected that not all of the engine's cylinders are firing properly. A P0300 diagnostic code indicates a random or multiple misfire. If your car is showing the P0300 engine code, you’re dealing with a problem with the cylinder(s) misfiring. My Jeep Grand Cherokee’s fuel filler door releaseThe P0300 engine code indicates a misfiring cylinder problem in your vehicle. The misfiring happens when insufficient fuel is burned or when the spark plug gets damaged. In addition, it can damage your car’s catalytic converter in extreme conditions. P0300 code denotes “Random or Multiple Cylinder Misfire Detected.”.ZOKahIA.
