Some RAM 2500 owners report experiencing overheating issues alongside a lack of cabin heat, despite flushing the radiator and replacing the thermostat. These problems may be interconnected, as the absence of cabin heat could indicate that the thermostat is not opening properly, which is necessary for hot water to reach the heater core. Additionally, factors such as cavitation, electrolysis, and corrosion can adversely affect the cooling system's efficiency. Some owners find that a malfunctioning water pump hinders proper circulation of water through the heater, contributing to the absence of heat in the cabin. In some cases, a stuck closed thermostat might still allow for heat, as it continuously draws water from the engine. It is crucial for owners to ensure that all components of the cooling system are functioning correctly, and if issues persist, seeking further inspection from a qualified mechanic is recommended for effective diagnosis and resolution.
RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.
Call us at 877-913-1554
Available 9am – 6pm ET Monday through Friday