There are 2 stored owner reports matching the fuel system leading-label group for the 2003 Mitsubishi Lancer in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.