Jeep Patriot battery constantly drains and engine emits odd sound after starting on Jeep Patriot

Some Jeep Patriot owners report experiencing battery drain issues, possibly due to a parasitic power draw that continues to draw current even when the vehicle is off. This problem may be exacerbated by a failing alternator, which can lead to the battery draining to the point where the vehicle cannot start. Additionally, some owners notice odd sounds coming from the engine after starting, which may indicate issues with the starter motor or problems with the ASD relay and corroded relays, potentially resulting in a crank no start situation. To address these concerns, it is advised to test for parasitic power draws, check the alternator's functionality, inspect the starter motor, and replace any corroded relays. If these measures do not resolve the issues, consulting a professional mechanic or dealership for further diagnostics and repairs is recommended.