There are 2 owner-reported fuel system complaints for the 2003 Mitsubishi Lancerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
I GOT INTO MY CAR TO START AND IT WOULD TURN OVER BUT NOT START. AFTER REPLACING THE FUEL PUMP, CHECKING ALL THE FUSES AND RELAYS, STILL THE SAME PROBLEM. THE WIRE HARNESS FUSE BLOCK THAT SITS INSIDE THE DRIVERS FOOT WELL HAS BEEN CORRODED BY WATER FROM A LEAK IN THE FIRE WALL. THIS IS A VERY COMMON PROBLEM THAT EVEN GOES BACK TO THE PREVIOUS GENERATION , EVO VII, AND WASN'T FIXED FOR THE FOLLOWING GENERATION, EVO IX. *TR
TL*THE CONTACT OWNS A 2003 MITSUBISHI LANCER. THE SERVICE ENGINE SOON INDICATOR LIGHT ILLUMINATED. THE CONTACT TOOK HER VEHICLE TO BE SERVICED. THE DEALER INFORMED HER THAT THE FUEL TANK WAS LEAKING AND NEEDED TO BE REPLACED. SHE WAS INFORMED THAT THREE VALVES NEEDED TO BE REPLACED BECAUSE THEY WERE CAUSING AN EMISSIONS LEAK. THE CONTACT STATED THAT THE PLASTIC COVER CRACKED AND THE BOLTS WERE RUSTED AND CORRODED. ONE OF THE BOLTS SNAPPED OFF AND THE ENTIRE GAS TANK NEEDS TO BE REPLACED. SHE PURCHASED AN EXTENDED WARRANTY FOR $1,500, BUT IT DOES NOT COVER THE FAILURE. THE REPAIR COST WOULD BE $1,500. THE PURCHASE DATE WAS UNKNOWN. THE CURRENT AND FAILURE MILEAGES WERE 46,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026