Mercury Mountaineer P0446: Meaning, Causes, How to Fix

A prevalent issue with the Mercury Mountaineer is the P0446 code. This code corresponds to a specific number obtained when connecting your Mountaineer to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Definition P0446: EVAP System – Vent Control Circuit – Malfunction Symptoms Usually none Common Causes Bad EVAP Vent Control … Read more

Mercury Mountaineer P0401: Meaning, Causes, How to Fix

P0401 is a very common OBDII trouble code that’ll pop up in the Mercury Mountaineer. It has to do with the emissions system and stands for Exhaust Gas Recirculation (EGR)→ Insufficient Flow. The EGR system in your vehicle is responsible for recirculating exhaust gasses in order to lower the vehicle’s emissions output. There are three … Read more

Mercury Mountaineer P0341: CPS – Range/Performance

P0341 is a somewhat common OBDII diagnostic code in the Mercury Mountaineer. It means that there is a Range/Performance problem. In layman terms this means that there is a problem with the signal coming from the Camshaft Position Sensor (CPS).   OBDII P0341 means that there is a problem with the Camshaft Position Sensor (CPS) … Read more

Mercury Mountaineer P0325 Code: Causes + How to Fix

The Mercury Mountaineer is a reliable SUV, but it can experience issues with its engine. One common problem is the P0325 trouble code, which can be caused by a variety of issues. In this article, we’ll discuss the potential causes of this code and how to fix it. The knock sensor’s primary role is to … Read more

Mercury Mountaineer P0306: Misfire Detected (Cylinder 6)

P0306 is a fairly common trouble code with the Mercury Mountaineer. It’s and OBD2 code and stands for: P0306 is certainly a cause for concern, and should be considered a threat to the drivability your Mountaineer. The nice thing about P0306 is that it’s a cylinder specific trouble code, which makes diagnosing the problems much … Read more

Mercury Mountaineer P0102: Meaning, Causes, + How to Fix

If you own a Mercury Mountaineer, you may have encountered the P0102 trouble code. This code indicates that the Mass Air Flow (MAF) circuit is low and not performing within its specified operating range. When this happens, your vehicle may experience drivability issues such as stalling, lack of power, rough idle, and hesitation. There are … Read more

Mercury Mountaineer P0101: Meaning, Causes, and Diagnosis

P0101 code in the Mercury Mountaineer is crucial to maintaining your truck’s performance and ensuring it runs efficiently. This code indicates that there is a problem with your vehicle’s Mass Air Flow (MAF) sensor, specifically, a Range/Performance issue. The most common cause of P0101 is a bad MAF sensor. When you encounter the P0101 code, … Read more

Mercury Mountaineer P0174: Meaning, Causes, How to Fix

One of the most common trouble codes with the Mercury Mountaineer is P0174. It indicates that your Mercury Mountaineer is running lean on the bank two side of the engine.  P0174 and P0171 (fuel trim lean bank one) are the most frequently seen air/fuel mixture-related codes. If they appear together, it reduces the list of … Read more