P0021 is a common trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Mercury Mountaineer can have VVT, and is prone to developing this code. P0021 is a generic OBDII code. This means that it has the same definition regardless of the make … Read more
P0305 is a fairly common trouble code with the Mercury Mountaineer. It’s and OBD2 code and stands for: P0305 is certainly a cause for concern, and should be considered a threat to the drivability your Mountaineer. The nice thing about P0305 is that it’s a cylinder specific trouble code, which makes diagnosing the problems simpler … Read more
One of the most common trouble codes with the Mercury Mountaineer is the P0456 code. This trouble code references a number that is given to you when you plug your Mountaineer into an OBDII scanner. P0456 Indicates that there is a small leak in the evaporative emission control system. It often appears with or is … Read more
P0507 is a fairly typical OBDII trouble code that can occur in the Mercury Mountaineer. It is typically triggered when the engine idle speed is 200 rpm or more over the predetermined limit set by the Mercury It is a generic code, which means that it has the same meaning for the Mercury Mountaineer as any other vehicle. … Read more
P0741 is a very common OBDII trouble code. It’s know to affect the Mercury Mountaineer quite often. Here’s what it means: P0741: Torque Converter Clutch Circuit → Performance or Stuck Off The Mountaineer uses a clutch in the torque converter to lock the engine and transmission together at highway speed. P0741 can register whenever this … Read more
A common trouble code with the Mercury Mountaineer is P0172. This code number references a number given to you when you plug your vehicle into an OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common. It means the motor is running rich. Mercury Mountaineer … Read more
One of the most common trouble codes with the Mercury Mountaineer is P0171. It indicates that your Mercury Mountaineer is running lean on the bank one side. It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. The most … Read more
P0141 is a very common OBDII code that occurs in the Mercury Mountaineer. It is caused by a failure in one of the elements that heat the oxygen sensors, specifically bank 1 sensor 2, which is downstream from the catalytic converter. It technically stands for: The purpose of the heated element in the oxygen sensor … Read more
P0135 is a very common OBDII code that occurs in the Mercury Mountaineer. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 1 sensor 1. It technically stands for: The purpose of the heated element in the oxygen sensor is to quickly bring your O2 sensor … Read more
The P0128 OBD II trouble code indicates that your Mercury Mountaineer’s engine coolant temperature has not reached its required operating temperature within a certain amount of time after starting the vehicle. This code can appear as soon as you start your vehicle, or it can also occur while driving. It’s essential to address this issue … Read more