![]() There is a pin inside your ignition switch that can be responsible for engine stalling without prior warning. ![]() Let’s now look at another sneaky component that can cause unexpected stalling. Should I Use Synthetic Oil In My Jeep Wrangler? (WARNING)īad CPS Symptoms include but are not limited to: 1 When replacing electrical parts, use only genuine MOPAR parts for best performance and functionality. Take note not to use sub-standard electrical components when replacing. If the crank position sensor is bad, it can cause misfiring, poor engine performance, and stalling since the engine is robbed of spark, which it needs to function properly. The engine computer then takes this information to control the fuel injection and the ignition timing system. The purpose of the crank position sensor is to monitor the position and rotational speed of the crankshaft. These can cause sudden stalls and even the inability to restart the engine again.Ī very common cause of sudden fails on Jeeps and many other modern vehicles is the CPS (Crank Position Sensor). ![]() Crank Position SensorĮlectrical gremlins are a real pain in the, “you know what”, to diagnose at times. So let’s start by looking at the most common reasons why Jeeps stall and work our way down. If you are mechanically-minded or a DIY type person, then these checks and fixes are relatively easy to perform and can be carried out with no special tools. Jeep Wrangler Check Engine Light Reset Jeep Wrangler Stalling Problems (SOLUTIONS) So now we know what the symptoms are, let’s look at some of the possible solutions to this weird stalling problem. This is also completely random and not a phenomenon you can recreate, which always makes troubleshooting a lot more tricky. The vehicle restarts as if nothing happened and appears to be able to function 100% fine again. Most Jeep owners report, once this happens, the engine light appears, but no error code is kicked out. Strangely, when driving on the highway, your jeep appears to be going perfectly fine? Or you could be cruising at a very slow speed when this happens. So you’re driving down the road and come to a stop when suddenly your Jeep stalls without any prior warning.
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