One problem related to tank assembly has been reported for the 2003 Mitsubishi Montero. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Mitsubishi Montero based on all problems reported for the 2003 Montero.
Hesitation and stalling between 0-45 mph at slightly above 3/4 full tank of gas. Vehicle leaks substantial quantity of fuel when parked on incline at slightly above 3/4 tank of gas. In addition, this vehicle was not filling properly at the gas pump (pump continually shut off as if tank were full even though it was not). These same problem occurred with our 2002 Montero which was returned to Mitsubishi through the lemon law. These problems began at 26,000 miles, problems occurred with other vehicle starting at 9,000 miles. In the 2003, they have replaced the rollover valve (cracked).
| Gasoline Storage problems | |
| Gasoline Fuel System problems | |
| Tank Assembly problems |