Does this vehicle have an interference engine?

Yes, the 1999 Mitsubishi Galant is equipped with an interference engine. An interference engine is one in which the valves and pistons occupy the same space within the combustion chamber but at different times. If the timing of the engine is disrupted, such as through a timing belt or chain failure, the valves and pistons can collide, potentially causing significant engine damage.

It's crucial to follow the recommended maintenance intervals for replacing the timing belt or chain in vehicles with interference engines to prevent the risk of engine damage due to timing component failure. In the case of the 1999 Mitsubishi Galant, ensuring that the timing belt is replaced at the recommended intervals is essential to prevent potential engine damage.