What causes my vehicle to stall out often? have changed my fuel filter already

Good question. Many things to eliminate. You might want to have a mechanic narrow this down with a diagnosis. Otherwise, here are possible causes:

Fuel pressure regulator: If the fuel pressure regulator is faulty, it can cause the engine to start and then stall immediately. You may want to check the fuel pressure regulator to see if it's working properly.

Fuel pump relay: A faulty fuel pump relay can cause the engine to start and then stall immediately. You may want to check the fuel pump relay to see if it's working properly.

Crankshaft position sensor: If the crankshaft position sensor is faulty, it can cause the engine to start and then stall immediately. You may want to check the crankshaft position sensor to see if it's working properly.

Ignition switch: A faulty ignition switch can cause the engine to start and then stall immediately. You may want to check the ignition switch to see if it's working properly.

Battery: If the battery is weak or dead, it can cause the engine to start and then stall immediately. You may want to check the battery to see if it's working properly.

Fuel filter: A clogged fuel filter can cause the engine to start and then stall immediately. You mentioned that you already changed the fuel filter, but it's possible that there's still an issue with it.

Vacuum leak: A vacuum leak can cause the engine to start and then stall immediately. You may want to check for any vacuum leaks in your truck.

A 1997 7.3 diesel engine that starts, idles rough, and then dies within a minute can be caused by a variety of issues. Here are a few things to check:

1. Fuel system: The fuel system is a common cause of this issue. Check the fuel filter, fuel pump, fuel lines, and injectors for any signs of blockages or damage. If any of these components are faulty, they can prevent the engine from receiving sufficient fuel and cause it to stall.
2. Glow plugs: Glow plugs are used to heat the combustion chamber in diesel engines to aid in cold starting. If the glow plugs are not functioning properly, it can cause rough idle and stalling. Check the glow plug relay and individual glow plugs for proper functioning.
3. Air intake: A clogged air filter or intake system can restrict air flow to the engine, causing it to run poorly and stall. Check the air filter and air intake system for any signs of blockages.
4. Electrical system: A faulty battery, alternator, or starter can cause the engine to stall. Check the battery voltage, alternator output, and starter function to ensure that they are all working properly.
5. Sensors: Faulty sensors, such as the crankshaft position sensor, can cause the engine to stall. Check the sensors for proper function and replace any that are faulty.

If none of these issues seem to be the cause of the problem, it may be necessary to take the vehicle to a qualified mechanic for a diagnostic inspection to determine the underlying issue.

It sounds like there are multiple issues with your Isuzu KB 240 LE. A powerless engine and stalling can be caused by a number of issues, including:

1. Fuel Delivery: If the fuel pump is not delivering enough fuel to the engine, it can cause a loss of power and stalling.
2. Ignition System: If the spark plugs or ignition coils are not functioning properly, it can cause a loss of power and stalling.
3. Mass Air Flow Sensor: A faulty mass air flow sensor can cause the engine to run lean, resulting in a loss of power and stalling.
4. Vacuum Leaks: A vacuum leak can cause a loss of power and stalling.
5. Throttle Body: A dirty or clogged throttle body can cause a loss of power and stalling.
6. Engine Control Module: A malfunctioning engine control module can cause the engine to lose power and stall.
7. Fuel Injection System: A clogged fuel injector or a failing fuel pressure regulator can cause the engine to lose power and stall.

It's recommended to have the vehicle professionally diagnosed to determine the root cause of the problem. The diagnostic process may involve checking the fuel and ignition systems, performing a vacuum leak test, checking the throttle body, and possibly scanning the engine control module for codes. Once the issue is identified, the necessary repairs can be made to restore proper engine performance.

hi Jaycee.
read up at this link.
5 Signs Your Car or Truck Has Dirty Fuel Filter DoItYourself com

What are some signs of a bad fuel filter? Symptoms of a bad fuel filter. One typical example of a restricted fuel filter is a vehicle that cuts out or loses power driving up an incline, such as a bridge. Under load,fuel demand increases and a clogged fuel filter reduces the needed flow. As the fuel filter gets dirty, the fuel pump works much harder.
Can a bad fuel filter cause your car not to start?1. Car is hard to start. One of the first symptoms of a problem with the auxiliary fuel filter is hard starting. If the filter becomes excessively dirty or clogged it may restrictfuel pressure or flow, which may cause the vehicle to experience difficultystarting.
Can a clogged fuel filter cause a car to stall?2. Engine misfires or decrease in power and acceleration. ... Sometimes the fuel filter can become clogged to the point where it negatively affects engine performance. A severely dirty or clogged fuel filter can cause the vehicle to experience misfires, a decrease in power and acceleration, and even stalling.

sounds like idle air control valve on throttle body

Have u checked the cadeletic converter. It can do funny things

It sounds like a weak fuel pump is causing the occasional stalling, particularly when attempting acceleration at normal driving speeds. It's not unusual for it to idle with no problem if the pump is weak. Also, check the fuel lines to.from the fuel pump. If all else fails, you might consider adding an auxiliary fuel pump to counter the weak OEM pump.

have you tryed changeing out plug wires and spark plugs

Check the oxygen sensors.

change fuel filter and add a can of SEAFOAM(parts stores) to a 1/2 tank of Premium gas. Try it. and when you do, look inside the fuel filter and see the goop that's causing most of your problems. your vehicle suffers from EGS