Lincoln LS heat won't shut off and engine light remains on with no solution found on Lincoln LS

Some Lincoln LS owners report experiencing issues with the heat not shutting off and the engine light remaining on, which can be attributed to several potential causes. These owners often find that a malfunctioning thermostat may lead to constant heating and engine overheating, with symptoms including a spiked temperature gauge. Additionally, problems with the heater core, such as blockages or malfunctions, can prevent the heat from turning off, as it is responsible for circulating hot coolant from the engine. Concerns within the coolant system, like low coolant levels or air trapped in the heater circuit, can also affect heating performance. Furthermore, some owners encounter electrical or mechanical issues that may involve a combination of systems within the heating mechanism. It is recommended for these owners to consult a technician for a proper diagnosis, check the thermostat's functionality, inspect the heater core for blockages, and verify the coolant system components to effectively resolve the heating and engine light issues.