Jeep Wrangler Stalling While Driving

Jeep wrangler stalling while driving could be quite disappointing to experience regular intervals. It is even more infuriating when it’s your own Jeep Wrangler. This problem would not just waste your time, it could shove you into immense danger on a busy highway. You need to ascertain whether your Jeep comes to a stop when you are driving at a slow speed or right when you are coming to a stop. This symptom could be directing you towards a deeper and more serious problem. 

The solution to this problem will begin with a thorough inspection of some important components. There could be some issue with your crank position sensor. It is also possible that the battery of your vehicle is low. 

One should carefully check the oil pump drive assembly and spot any flaws. More so, there could be some trouble with the wiring harness or the ignition switch actuator pin. In some cases, the problem extends from the fuel pump. Troubleshooting the actual area of the issue is not a very easy process. 

Investigate the areas that could be the root of the problem 

Some specific areas are known to cause stalling in Jeep Wrangler. It is essential that you inspect these areas first and rule out the reason. The commonest Jeep Wrangler stalling problems will revolve around the fuel supply and the electrical components. Because these are wide-ranging categories, your car will need a thorough inspection to figure out the exact cause. 

Note whether your Jeep Wrangler comes to an abrupt stop without any prior warning, especially at the time you are driving. You need to ascertain whether your Jeep stalls while driving or at the time you are already slowing down. And how often have you noticed that your Jeep hardly stalls when you are driving down a constant speed on a highway?

Jeep owners commonly mention that their engine light is switched on every time this happens. However, no error code is ever deciphered. More often than not, the vehicle restarts with ease as if it had never stalled. So when your Jeep appears to randomly stall without any apparent reason, the situation certainly becomes more tricky. 

Although, this is the time when you need to pay full attention. You need to look out for certain symptoms that could guide you towards the real source of the problem. First and foremost, you must pay attention to the engine light. See whether it is flickering or lighted up. Also look for other warning signals that may be escaping your eye.

See if your gauges and other instruments are working properly and if the fuel gauge returns to empty when you have exhausted the fuel. It is also important to note whether your cruise control cancels out or not. 

Once you have noted down the evident symptoms, it’s time to figure out an apt solution. 

Find the appropriate solution for your stalling Jeep Wrangler 

In case you own a mechanical head, hand, and heart, you’d find it relatively easy to find and practice a solution all by yourself. There are certain easy to perform checks and fixes that require no special tools. 

Examine your crank position sensor

jeep wrangler stalling while driving

It can be very difficult to properly examine the electrical flaws. The stalls can be very abrupt and it could be very difficult to restart the engine. The crank position sensor of Jeep Wranglers is commonly found to be at fault whenever such a problem appears. 

The crank position sensor serves to monitor the position and the rotational speed of the crankshaft. This information is then analyzed by the engine computer to control the fuel injection and the ignition timing system. A bad status of the crank position system could lead to misfiring and a deterioration in the engine’s performance. Robbed of the essential spark, the engine then comes to a stall.

It is important that you use only high-quality components while replacing a crank position sensor. Any utilization of sub-standard electrical parts would again lead to trouble. It is worth examining whether the replacement parts are genuinely MOPAR.

A disturbed crank position system could also manifest as completely erratic engine behavior or a decrease in engine power. Your engine’s acceleration could become slow and tired. At times you wouldn’t be able to start your engine with ease.

Examine your ignition switch actuator pin 

Your ignition switch has a pin that could cause the stalling of your Wrangler’s engine without any prior warning. A specific portion of the switch consists of a metal rod and a link. This part triggers and forwards an electrical signal to the starter motor of your vehicle when cracking. This key is then securely retained so that the connection with the switch is maintained. 

It is possible that a disturbance in this connection may have affected the functioning of the switch. If the situation is too bad, your engine may not even start. Experts recommend that you don’t add heavy weighing decorations on your ignition key that could wear it out prematurely. 

A correction of this problem would involve the removal of the ignition switch from the steering. You will also need to remove the ignition switch actuator pin assembly from the ignition lock cylinder housing. Then install a new ignition switch actuator assembly and refit the ignition lock cylinder. 

Examine your Oil Pump Drive Assembly

The oil pump drive assembly of Jeep Wranglers consists of two bronze oil bushings that are separated by an oil seal. This seal sometimes cuts off lubrication for the upper bushing and causes a failure of the assembly. This could eventually result in a failure of the whole assembly along with the camshaft. This inefficient design, when improperly maintained, often leads to premature failure of the assembly and the other more important parts. 

It is possible that a radial movement develops in the shaft over time. Take care to regularly lubricate such parts that could have dire consequences because of lack of maintenance. No special tools are required to keep this portion normal, so it should be relatively easy. 

It is very unwise to ignore a problem in the oil pump drive assembly because this inexpensive component could easily deteriorate your other valuable parts. All Jeep Wranglers built between the years 1992 and 2006 are known to suffer from this problem. Once damaged, the oil pump drive assembly should be adequately replaced. 

Examine your vehicle’s battery

A faulty or weak battery could also result in abrupt stalling of your Jeep Wrangler’s engine. Numerous electrical problems could stem out of one bad battery. Consider that a weak battery has extremely low cranking power and amps. This can lead to the production of incorrect or confusing electrical signals that could unexpectedly stall your Jeep. 

A weak battery would also make you go extra hard on your alternator to keep the engine running. When your battery is already wek, any additional load could cause your Jeep to stall.

Examine the wiring harness 

It is very difficult to rule out problems in the wiring harness. These portions are constantly exposed to heat so they usually deteriorate before all other portions. Further exposure to chaffing and moisture could result in short circuits and various electrical faults could appear. It is suggested that you thoroughly inspect the harness that lies close to your firewall. Look for signs of 2x bolts pressing into the harness.

Check the working of the fuel pump 

A deteriorating fuel pump would not only affect the fuel efficiency of your vehicle. It would also weaken the acceleration and power supply of your Jeep Wrangler’s engine. Furthermore, it could cause annoying sputtering noises. Sometimes a loud humming sound is created because of inefficient Wrangler fuel tanks. 

The low pressure of a weak fuel pump would limit the amount of air your engine gets. Your vehicle will be insufficiently powered and there could be whining noises in the rear portion.

Conclusion – jeep wrangler stalling while driving

A stalling Jeep Wrangler could be a source of immense trouble and frustration. We have mentioned the most common causes that result in this problem. While you can easily identify the source of the problem as it starts, it is essential that you take utmost care of your vehicle parts. 

Ensure that you utilize only genuine MOPAR parts while doing replacements. Substandard parts will only cause further unexpected problems. Cheap component parts could deteriorate the condition of your Jeep by sending inaccurate electrical signals. Make sure that you check your vehicle’s battery first, before you arrive on other conclusions and make unnecessary repairs. 

Even if your battery is younger than three years, it could still encounter flaws. It is important that you thoroughly clean all the contact points and spray them with a high-quality dielectric spray during the installation of electrical components. This would ensure the strength and dependability of the connection and maintain your Jeep’s health. Get your Jeep examined as soon as such problems start appearing so that the situation is not worsened. 

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