Idle Air Control Valve (IACV): A faulty IACV can cause the engine to stall or shut off when the car hits bumps. Clean the valve or replace it if needed.
Air Intake System: Check for any obstructions or leaks in the air intake system that may cause the engine to stall. Clean the air filter and ensure the intake hose is properly connected.
Throttle Position Sensor (TPS): A faulty TPS can provide incorrect signals to the Engine Control Unit (ECU), causing the engine to stall. Test and replace the TPS if necessary.
Vehicle Speed Sensor (VSS): A malfunctioning VSS can provide incorrect speed signals to the ECU, leading to engine stalling. Check the sensor and its wiring for any issues.
Crankshaft Position Sensor (CKP): A faulty CKP can cause intermittent stalling as it provides essential signals for the ECU to manage engine timing. Check and replace the sensor if needed.
Electrical Issues: Check the battery, terminals, and wiring connections to ensure there are no loose or damaged components.
Vacuum Leaks: Look for any vacuum leaks in the engine compartment that could cause the engine to stall. Check and replace any damaged or loose vacuum hoses.
Distributor Cap and Rotor: If your Dodge Stealth has a distributor, inspect the distributor cap and rotor for cracks, carbon buildup, or damage. Replace them if necessary.
