1. Fuel injector issues: If the fuel injectors are clogged or dirty, they may not be able to deliver enough fuel to the engine, causing it to run out of gas even when the tank is full. You can try using a fuel injector cleaner to see if this helps resolve the issue.
2. Fuel pump issues: The fuel pump is responsible for delivering fuel from the tank to the engine. If the fuel pump is not working properly, it may not be able to deliver enough fuel to the engine, even when the tank is full. You can check the fuel pump by listening for a humming noise when you turn the key to the "ON" position. If you don't hear a humming noise, the fuel pump may be faulty and need to be replaced.
3. Fuel filter issues: The fuel filter is responsible for removing impurities from the fuel before it reaches the engine. If the fuel filter is clogged, it may restrict the flow of fuel to the engine, causing it to run out of gas even when the tank is full. You can check the fuel filter by looking for a buildup of dirt or debris. If the fuel filter is dirty, it should be replaced.
4. Vacuum leaks: A vacuum leak can cause the engine to run lean, which can lead to the symptoms you are experiencing. You can check for vacuum leaks by using a smoke machine or by listening for a hissing noise around the engine. If you find a vacuum leak, it should be repaired as soon as possible.
5. Throttle body issues: The throttle body is responsible for controlling the amount of air that enters the engine. If the throttle body is dirty or damaged, it may not be able to control the air flow properly, which can lead to the symptoms you are experiencing. You can clean the throttle body by using a throttle body cleaner and a shop towel. If the throttle body is damaged, it will need to be replaced.
If you are still experiencing problems after checking these items, you should take your Jeep to a qualified mechanic for further diagnosis.
