Catalytic Convertor Problems of Mitsubishi Montero

Mitsubishi Montero owners have reported 4 problems related to catalytic convertor (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mitsubishi Montero based on all problems reported for the Montero.

1 Catalytic Convertor problem of the 2003 Mitsubishi Montero

Failure Date: 08/12/2015

The contact owns a 2003 Mitsubishi Montero. The contact stated that the check engine warning light remained illuminated when the vehicle was purchased from the dealer. The contact stated that the vehicle had a strong hesitation as the failure progressed. The vehicle was taken to an independent mechanic who diagnosed that the catalytic converter needed to be replaced. The manufacturer was not notified. The approximate failure mileage was 130,000.

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2 Catalytic Convertor problem of the 2001 Mitsubishi Montero

Failure Date: 01/15/2006

I purchased a 2001 Mitsubishi Montero ltd from gibbons Toyota in eynon, PA. I also purchased a warranty from them. My engine light comes on. They say sensors have to be changed. Light came back on. Changed another sensor, light came on. Now they say it is the catalytic converter. They tell me it is covered by Mitsubishi for 8 yrs. They try ertley motor world numerous times and cannot get them to respond. They are in wilkes-barre, PA. Gibbons mgr then contacted domiano's in archbald. They to did not want to have anything to do with this. Why is it that Mitsubishi dealers will not stand behind their warranty's. This is the 4th Mitsubishi I have owned, and now that I see the service, it will be the last. They are very ignorant people. They treat you like dirt. Very arrogant. Something should be done about this. There is an 8 yr warranty on the converter, and it should be changed with no hassle. Thank you. This has been going on for the last 6 months.

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3 Catalytic Convertor problem of the 2001 Mitsubishi Montero

Failure Date: 07/26/2004

At 35000, the trunk door latch mechanism is broken. At 57000 miles check engine light lit, caused by spark plugs or spark plug wires open. Replace all plugs and wires at dealership, cost $300. Not covered by warranty. At 77000 miles, check engine light lit, dealership replaced catalytic converter under warranty but I pay for the oxygen sensor plus labor that goes with the catalyst. Old parts not available. Car driven about 3 miles home from dealeship after replacing the cat. Converter, the check engine light lit again. Dealership checked and said another oxygen sensor is bad. Total 4 oxygen sensors in the system. Cost $230 to replace one sensor. I could not believe that these sensors will go bad at the same time. Is that a coinsidence or manufacturer parts defects???.

4 Catalytic Convertor problem of the 1998 Mitsubishi Montero

Metal fragments found in catalytic converter. Yh.

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Other Common Engine And Engine Cooling related problems of Mitsubishi Montero



Fuel Economy of Montero Vehicles
Montero Service Bulletins
Montero Safety Recalls
Montero Defect Investigations