P0011 is a common (and serious) OBD II diagnostic trouble code that can occur in the Mercury Grand Marquis. It indicates an issue with your car’s Variable Valve Timing (VVT) system. The first thing you should do when you have this code is check your Grand Marquis’s oil. If the oil level is too low, … Read more
P0010 is a relatively common trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Mercury Grand Marquis can have VVT and is prone to developing this code. P0010 is often by low or sludgy oil. Check your Grand Marquis’s oil as soon as possible. P0010 … Read more
P0301 is a fairly common trouble code with the Mercury Grand Marquis. It’s an OBD2 code and indicates that your car’s first cylinder is misfiring. P0301 is certainly a cause for concern and should be considered a threat to the drivability of your Grand Marquis. Fixing P0301 should be considered a high priority. Unlike a … Read more
P0013 is a frequent OBDII trouble code. It is generic, which means that it has the same meaning for the Mercury Grand Marquis, as it would any other vehicle. It only affects vehicles with Variable Valve Timing. Below we’ll outline the major symptoms and causes of P0013, as well as the most common fixes. … Read more
P0014 is a relatively common trouble code for vehicles that have Variable Valve Timing (VVT). This includes the Mercury Grand Marquis. VVT adjusts the position of the camshaft(s) to maximize the combustion efficiency of the motor. P0014 means that the camshaft position is too far advanced from where it should be in relation to normal … Read more
P0300 is a generic OBDII code that can occur with the Mercury Grand Marquis. This code indicates that your car’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific … Read more