P2270 is a general DTC trouble code, which means it has the same meaning for the Jeep Grand Cherokee as it would any other vehicle. It means that the oxygen sensor located on bank 1 behind the catalytic converter is continuously sending voltage that indicates a lean air/fuel mixture. This does not necessarily mean … Read more
Your Jeep Grand Cherokee utilizes an evaporative emissions control (EVAP) system to migrate fuel vapors from the gas tank and fuel filler neck, and sends them to the engine to be burned off. When the pressure inside of the fuel tank is too high, P0453, is thrown and the check engine light comes on. If the … Read more
P0452 is a generic OBD II code that can occur in the Jeep Grand Cherokee. It means that your Grand Cherokee’s EVAP system has detected low fuel tank pressure. The evaporative emissions control system (EVAP) sends fuel vapors from the fuel tank to the intake manifold to be burned off. When the pressure in the … Read more
P2189 is a DTC code that can occur in your Jeep Grand Cherokee. It indicates the air fuel mixture is too lean at idle, specifically in bank 2 (we’ll cover how to find bank 2 later). Its is different from the much more common P0174, which indicates that bank 2 is lean at any engine … Read more
P2187 is a DTC code that can occur in the Jeep Grand Cherokee. It indicates the air fuel mixture is too lean at idle. The technical definition for P2187 “System Too Lean at Idle: Bank 1”. The code is thrown after your Grand Cherokee’s oxygen sensor on Bank 1 (usually sensor 1) has detected that … Read more
P2181 indicates that your Jeep Grand Cherokee has an observed cooling system temperature that is too high or too low. It will come up in the scan tool as “Cooling System Performance”. The trouble with P2181 is that by itself, it’s not narrowing much down. There could be a problem with your Grand Cherokee’s cooling … Read more
There are a few reasons why your Jeep Grand Cherokee would be overheating when idling. The most common ones include a bad thermostat, water pump, electric fans, and low coolant level. This guide is intended to help you find the cause of this overheating in the most efficient way possible. So, let’s start with what’s … Read more
P0068 in the Jeep Grand Cherokee is a generic OBD II code. In layman’s terms, it means that the MAP (manifold absolute pressure) and/or MAF (mass airflow sensor) are providing the Grand Cherokee’s computer contradicting data compared to what it should be in relation to the throttle position sensor. The throttle position sensor tells the … Read more
A smoking engine is a serious thing. If your Jeep Grand Cherokee’s engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your Grand Cherokee’s engine would smoke include overheating, burning … Read more
While it may not leave you stranded, a vehicle that hesitates to start can be very concerning. There are a few reasons why your Jeep Grand Cherokee may not be starting, such as a bad starter, a bad battery, bad alternator, and more. Jeep Grand Cherokee Hesitates to Start: Causes Here are some of … Read more