One problem related to check engine light on has been reported for the 2004 Mitsubishi Lancer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Mitsubishi Lancer based on all problems reported for the 2004 Lancer.
The contact owns a 2004 Mitsubishi Lancer. While traveling 65 mph, the contact noticed that the check engine warning light was illuminated. Moments later, the contact noticed that the vehicle had began to lose acceleration. The vehicle was not diagnosed and no repairs were made to the vehicle. The current and the failure mileages were 85,000.