Ghostly, seemingly unrelated electrical stuff

Hi,
With my '02 ford explorer, the gas gauge doesn't work, nor does the 4 wheel drive, it tries to stall when the headlights are on and the left blinker is engaged. I was thinking it could be the GEM. Do you know if a faulty GEM could affect any or all of these things?. Thank you!

My car has 200000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hey there. The GEM (generic electronic module) module could be the culprit with the headlights and turn signals. Simply unplugging it and starting the car should answer this question. If it still stalls, then you have successfully ruled out the GEM module. Expect a few systems not to work with the module unplugged.

The fuel gauge does not utilize the GEM module, so this will be a wiring problem, the fuel level sending unit in the fuel tank or the gauge on the dash. The same goes for the four wheel drive. The GEM is not involved with it. So the short answer is the GEM does not affect all of those systems.

When a vehicle stalls when electrical circuits are turned on, that should not be a part of the motor running – it is always a short to ground somewhere. Shorts are random and may not be in the circuits you have mentioned. The best methods to locate a short is to begin by diagnosing the easiest problem that affects the running of the motor.

As far as the headlights or the turn signal. Check to see if both front the high and low beams operate correctly and the turn signals are working. If not, begin by diagnosing these two systems. You will need a test light and accurate wiring diagrams. There is one variable you need to be aware of in regards to the wiring diagrams. There is an early production and late production. You need to check your production date and choose the applicable diagram. You can find the production date on the door jamb of your drivers door.

The four wheel drive and fuel gauge systems will need to be diagnosed independently of each other. It is possible, there is a common ground for all these systems. The GEM modules included. Usually, but not always, beginning with one problem will reveal how they are all connected. If not, you have more than one failure and they all need to be diagnosed independent of each other.

To have this taken care of, I recommend having a certified professional from YourMechanic, diagnose the stalling issue and electrical problems in person. Be sure to leave a note for the technician explaining under what conditions the car stalls.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

The most common reasons a Ford Explorer engine stalling are the fuel system, the air intake system, or the ignition system. Search our network of RepairPal Certified shops near you to speak with a technician about your issue.
The 2017 Ford Explorer is also prone to electrical system defects. In formal complaints to NHTSA, several 2017 Explorer drivers mention electrical failures in their vehicles that result in loss of radio, navigation, and rearview camera display.
Another common problem with Ford 4.0L OHV V-6 engines is the weak casting of the stock cylinder heads. The stock heads are very prone to cracks around the valve spring pads or between the valves in the chamber.
Fortunately, the 4.0L SOHC is not an interference engine so a timing chain failure won`t bend the valves.
There are three major causes for a stalled engine: A lack of fuel, a lack of air flow and improper ignition. Running out of fuel is one of the most common causes of engine stalling, but dirty fuel injectors or a plugged fuel filter can also be the culprit. Your engine needs air to run properly as well.
Automatic transmission vehicles need to manage their level and pressure of transmission fluid when the car is idling. They do this with a component called a torque converter. When this converter fails, your engine will stall.
The biggest issue with the 2021 Ford Explorer is engine trouble. The 3.0L EcoBoost engine has had numerous issues since its debut in 2020, including check engine lights coming on and engine stalls. These issues have caused many owners to experience a decrease in fuel efficiency and performance.
Transmission issues, spark plug wiring harness failures, gas reliability issues, and engine malfunctions are all common Ford problems, but also look out for oil pan leaks, ignition misfires, and faulty blower motors.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Ghostly, seemingly unrelated electrical stuff
ANSWER : Hey there. The GEM (generic electronic module) module could be the culprit with the headlights and turn signals. Simply unplugging it and starting the car should answer this question. If it still stalls, then you have successfully ruled out the GEM module. Expect a few systems not to work with the module unplugged.

The fuel gauge does not utilize the GEM module, so this will be a wiring problem, the fuel level sending unit in the fuel tank or the gauge on the dash. The same goes for the four wheel drive. The GEM is not involved with it. So the short answer is the GEM does not affect all of those systems.

When a vehicle stalls when electrical circuits are turned on, that should not be a part of the motor running – it is always a short to ground somewhere. Shorts are random and may not be in the circuits you have mentioned. The best methods to locate a short is to begin by diagnosing the easiest problem that affects the running of the motor.

As far as the headlights or the turn signal. Check to see if both front the high and low beams operate correctly and the turn signals are working. If not, begin by diagnosing these two systems. You will need a test light and accurate wiring diagrams. There is one variable you need to be aware of in regards to the wiring diagrams. There is an early production and late production. You need to check your production date and choose the applicable diagram. You can find the production date on the door jamb of your drivers door.

The four wheel drive and fuel gauge systems will need to be diagnosed independently of each other. It is possible, there is a common ground for all these systems. The GEM modules included. Usually, but not always, beginning with one problem will reveal how they are all connected. If not, you have more than one failure and they all need to be diagnosed independent of each other.

To have this taken care of, I recommend having a certified professional from YourMechanic, diagnose the stalling issue and electrical problems in person. Be sure to leave a note for the technician explaining under what conditions the car stalls.

The engine will not turn over, and the issue seems to be electrical.
ANSWER : Hello. From what you describe it sounds like one of your vehicle’s relays may have failed. If the vehicle is no longer starting it may be possible that one of the relays associated with the starting system has gone out and needs to be replaced. Relays are electrical components that act as switches for the electrical system. They are often times located in the vehicle’s fuse panels, and beneath the dash. It is not uncommon for relays to burn out or shirt circuit and require replacement. If the smell and noises appear to be coming from underneath the dash I would check for possibly faulty relays their first. Similar symptoms can also be caused by faulty wiring or connectors. I would recommend having a professional technician, such as one from YourMechanic, come to your location to diagnose the no start condition and electrical issues.

My car gas pedal seems stuck when pressing on it while in park or drive 1994 Honda Accord
ANSWER : Hi there – I believe the throttle body on your engine is worn out, specifically the throttle sensor portion of the unit (internal component). It needs to be replaced. I recommend a throttle body inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, confirm this diagnosis, and give you an accurate assessment of damage and cost estimate for repairs.

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My catalytic converter was replaced and everything seems fine. However the engine seems incredibly loud and this occurred on the highway.
ANSWER : Hi there. There is an exhaust leak under the vehicle. Check the catalytic converter, muffler, and all the clamps under the vehicle on the exhaust pipe and see if anything came loose. Hook up any parts that are disconnected on the exhaust pipe or replace the parts that are broken. If you need further assistance with your exhaust system, then seek out a professional, such as one from Your Mechanic, to help you.

Car runs fine, idles smoothly and is well maintained; but it shuts off while driving. Seems electrical?
ANSWER : There are a few things that can cause this on your 2000 Acura TL. Check your battery connections to make sure they are clean and tight. If they are loose or corroded, then vibrations from driving could be causing the battery to become partially disconnected. The problem could also be a bad or loose connection with the crank position sensor or other sensor critical to the operation of the engine. If the problem was your alternator, it will usually trigger a dash light for the battery. It may also be the ignition switch is worn causing one of the internal circuits to intermittently make contact. I suggest having a certified technician, like one from YourMechanic, determine the exact cause of the stalling problem.

Does changing fuel pump from electric to mechanical cause loss of engine power?
ANSWER : All the Ford Focus gasoline engines have an electric fuel pump in the fuel tank and were never equipped to have a mechanical fuel pump since fuel injection systems have been used. You should be aware of any vehicle with modifications to its systems.

If you are considering getting a new fuel pump, have a certified mechanic, such as one from YourMechanic, come to your home or business and perform a replacement.

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ANSWER : Many times when a vehicle has been involved in a flood, it is typically considered to be totaled. There are so many electrical systems in newer automobiles that it would be very tough to test everything for water damage. I would just try to use the vehicle and determine what does and does not work, and then perhaps have those systems inspected by a qualified professional. Many times, flooded vehicles can cause many issues that can be unforeseen even during an inspection of the vehicle that has gone through a flood.