1. Vacuum leak: A vacuum leak can cause the engine to stall when the vehicle comes to a stop. This is because the vacuum leak allows air to enter the engine, which leans out the air/fuel mixture and causes the engine to stall. Check for any loose or disconnected vacuum hoses.
2. Fuel filter: A clogged fuel filter can restrict the flow of fuel to the engine, which can cause the engine to stall. Check the fuel filter and replace it if it is clogged.
3. Fuel pump: A failing fuel pump can also cause the engine to stall. Check the fuel pressure and replace the fuel pump if it is not within specifications.
4. Idle air control valve: The idle air control valve controls the amount of air that bypasses the throttle body at idle. A faulty idle air control valve can cause the engine to stall when the vehicle comes to a stop. Check the idle air control valve and replace it if it is faulty.
5. Throttle position sensor: The throttle position sensor tells the engine control module how far the throttle is open. A faulty throttle position sensor can cause the engine to stall when the vehicle comes to a stop. Check the throttle position sensor and replace it if it is faulty.
I would recommend taking your Jeep to a qualified mechanic to have it diagnosed and repaired.
