Mitsubishi Lancer transmission slipping issue after replacing with used unit, dealer suspects fluid contamination on Mitsubishi Lancer

Some Mitsubishi Lancer owners report experiencing transmission slipping issues after replacing it with a used unit, with fluid contamination suspected as a possible cause. Commonly, low or no transmission fluid is identified as a reason for slipping, and if no leaks are present, checking the solenoid is advised, as it can occasionally jam. Problems with the solenoid may mimic those caused by inadequate fluid levels or leaks. It is crucial for owners to ensure that the transmission fluid is at the correct level and in good condition to prevent slipping. Signs of a slipping transmission reported by some owners include high RPMs, strange smells, odd noises, and delayed acceleration when pressing the gas. Promptly addressing the suspicion of fluid contamination is essential to avoid further damage to the transmission system.