Ford Thunderbird parasitic drain issue and cracked manifold on Ford Thunderbird

Some Ford Thunderbird owners report experiencing issues related to parasitic battery drain, which can lead to a dead battery if not addressed promptly. They note that identifying the source of the drain is essential, as factors such as faulty alternators, electrical drains, and malfunctioning components can contribute to the problem. Methods like using a multimeter to check for excessive current draw are recommended for diagnosis, and some owners have found success with battery maintainers to mitigate the issue. Additionally, some Ford Thunderbird owners report encountering cracked exhaust manifolds, which can cause performance problems like stalling or rough idling due to deteriorating gaskets. Repair solutions, including the use of Pyro Putty 2400, have been employed, and proper maintenance practices are advised to prevent these manifold issues. Addressing these concerns is crucial for maintaining the vehicle's performance and reliability.