If your Jeep Liberty has the P0303 trouble code, you should know that it’s about as common of a code as there is. It’s a generic code (same meaning for all vehicles) that indicates that your vehicle’s third cylinder is misfiring. P0303 is a real drivability concern and should be dealt with right away. If … Read more
P0302 in the Jeep Liberty is a common OBD II trouble code. It indicates that your vehicle’s second cylinder has a misfire. P0302 is a real drivability concern and should be dealt with right away. If it’s bad enough to cause your Liberty’s check engine light to come on, you shouldn’t drive your vehicle at … Read more
P0301 is a fairly common trouble code with the Jeep Liberty. It’s an OBD2 code and indicates that your vehicle’s first cylinder is misfiring. P0301 is certainly a cause for concern and should be considered a threat to the drivability of your Liberty. Fixing P0301 should be considered a high priority. Unlike a lot of … Read more
P0401 is a very common OBDII trouble code that’ll pop up in the Jeep Liberty. 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
The P0440 code is a common trouble code that many Jeep Liberty owners may encounter. It indicates that there is an issue with the vehicle’s Evaporative Emission Control (EVAP) system. Specifically, the EVAP system is malfunctioning. A variety of causes can trigger the P0440 code, with the most common one being a loose or damaged … Read more
P0300 is a generic OBDII code that can occur with the Jeep Liberty. This code indicates that your vehicle’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 misfire, … Read more
One of the most common trouble codes with the Jeep Liberty is P0171. It indicates that your Jeep Liberty 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
P0135 is a very common OBDII code that occurs in the Jeep Liberty. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 1 sensor 1. It technically stands for: P0135: Heated Oxygen Sensor → Sensor Heater Circuit Malfunction → Bank 1, Sensor 1 The purpose of the heated … Read more
A somewhat common issue with the Jeep Liberty is the P0449 code. This code references a number that is given to you when you plug your Liberty into a OBD2 scanner. P0449 deals with the evaporative emissions control (EVAP) system. It often appears with, or is related other codes, such as P0420, P0446, and very … Read more
A prevalent issue with the Jeep Liberty is the P0446 code. This code corresponds to a specific number obtained when connecting your Liberty 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