It’s bad if you’re driving on a busy road and your car suddenly shuts down. This situation is not only dangerous for you but also for vehicles on the road. The consequences of this incident are very serious, so cars need to be checked regularly to avoid these unfortunate incidents.
Recently, one of the common questions related to the 2004 Jeep Grand Cherokee sudden shutdown is of interest to many drivers. 2004 Jeep Grand Cherokee shuts off while driving. What is the cause of this condition? How to fix sudden shutdown? Let’s find out the details in the article below.
2004 Jeep Grand Cherokee Shuts Off While Driving – What Is The Cause?
Based on recent data, many 2004 Jeep Grand Cherokee owners have reported unexpected events while on the move such as erratic electronic gear changes, and engine failure to operate continuously while in motion. changeover, slow generator operation, broken ignition switch, vehicle vibration, strange noises, and especially sudden shutdown.
Sudden shutdown while traveling on the highway is extremely dangerous. Here are some reasons why the 2004 Jeep Grand Cherokee suddenly shuts down while driving.
- Faulty crankshaft position sensor: It will affect some other components such as the ignition system and fuel system. If your car is moving but the signals tend to be stationary, the sensor is faulty. From there, the car’s engine will suddenly stop.
- Damaged fuel pump: Fuel is one of the indispensable factors when a car moves. If the fuel pump fails, it will not be able to deliver fuel to the combustion chamber. Since then, the engine will not have an energy source to operate and stall.
- Generator malfunction: The generator’s job is to generate power and charge the car’s battery. If you detect some signs such as low power, dim headlights, and weak sparks, the volume on the radio decreases and acceleration is slower. Because cars do not generate sparks and low fuel pressure causes the engine to stall suddenly.
What Should I Do To Check The Causes Of The Car Shutdown?
If your car stalls suddenly, move it to the curb or a safe parking spot for you and other traffic. Then you should check some of the parts below and ask for the assistance of a rescue vehicle.
Ignition Test
First, the cause of the car’s engine shutting down suddenly may be due to a loss of power. You should check the spark plugs for power. If the spark plug is still energized, the sensor system and the shaft are still stable. Conversely, if the spark plug has no power, you should replace the crankshaft sensor because the problem may lie in this part.
Fuel Pressure
After you are sure that the spark plug is energized and the electrical operations are stable, you should check the fuel pressure. You can use the fuel gauge or OBD 2 scanner to detect the fuel pressure. If the fuel pressure is low, you should deal with the problem quickly to fix the sudden car stall while on the go.
Operation Of The Injector
To check the operation of the injector, you should use protective clothing and a voltmeter to measure the resistance. First, you need to determine if the injector is working properly. You check by placing the screwdriver tip into the injector. If you hear the sound, the injector is still working properly.
Then you need to connect the voltmeter to the negative terminal of the battery. Check both sides of the injector connector. You need to check if the wire has current. This process involves electricity, so you need to do it carefully and follow the guidelines when dealing with electrical currents.
Check The Cam Position Sensor
One of your meter probes should be connected to one of the sensor wires, while the other should be connected to the other. Then you check the display of the watch and compare it with the parameters in the manual. In most cases, the sensor’s steady signal will fluctuate between 0.3 and 1 volt. If you find that the sensor has no signal, it is faulty and needs to be replaced.
Crankshaft Sensor
CKP makes piston movement and crankshaft position possible. The crankshaft sensor will help the computer monitor the engine speed and fault. The car’s computer system then processes this information to change the timing of ignition and fuel injection.
As you know, when the engine is running, the CKP sensor is subject to heat and vibration. However, abnormal temperatures and vibrations will also cause the sensor and its circuits to fail. So you need to check the connections and wiring between the sensor and the PCM or ignition module. You can use a digital multimeter to test your car’s sensor system.
Frequently Asked Questions About The 2004 Jeep Grand Cherokee
You may be interested in some common questions regarding the 2004 Jeep Grand Cherokee. Here are two questions we get the most and many owners to participate and share the problems they face when using this car brand.
Are There Any Recalls?
Yes, manufacturer Chrysler has had a major recall of the 2004 Jeep Grand Cherokee. Vehicles manufactured between May 27, 2003, and May 20, 2004, will be recalled by the manufacturer and compensated according to regulations. This is because electrical noise that exceeds the tolerance of the control module will cause serious damage to a part of the ECM.
How Do I Permanently Disable “Auto Start/Stop” Mode?
“Auto start/stop” mode of the 2004 Jeep Grand Cherokee may cause inconvenience to you while driving. At the same time, it can also be faulty and cause it to turn on or off erratically. So you can disable this mode permanently and only allow it to be turned off or on according to your intended use.
First, you need to find the main 12V battery. You then unplug the smart battery sensor (IBS), which is usually at the cathode. The sensing system will go into bypass mode as it no longer detects the battery. This will permanently disable the “Auto Start-Stop” mode.
Summary
2004 Jeep Grand Cherokee may experience frequent engine stalling. Some of the basic causes that cause a car to stall are a faulty crankshaft sensor, faulty fuel pump, or generator problem. If the car does not receive a signal from the sensor, fuel to the combustion chamber, or the power source, the engine will stall.
To overcome this situation, you need to check and maintain your car periodically to detect abnormalities early. In addition, you should also prepare the necessary tools for the car if you have encountered this situation before. Because the engine can often repeat the problem if not solved thoroughly.