Mitsubishi Montero Sport Problemsby Andy Joseph
The Montero Sport is a mid-size SUV that Japanese automaker Mitsubishi produced for the North and South American markets between 1997 and 2004. Affecting most model-year entries of its production run are moderate to significant problems.
The most common problem with the Mitsubishi Montero Sport concerns the engine. The 2002 Montero Sport in particular--but also, to a lesser degree, the 1998 to 2001 and 2003 model-years--are prone to failure of the oxygen sensor heater circuits; its malfunction reduces gas mileage and increases emissions. Additionally, some 1997 to 1999 vehicles were recalled for a loose bolt securing the crankshaft pulley--a problem that can cause loss of power steering.
Other common problems with the Mitsubishi Montero Sport include transmission leaks onto the hot exhaust system caused by transmission heat generation, and faulty brake vacuum hoses. Some Montero Sport vehicles from the 1999 to 2001 model-years were recalled for these problems.
As of September 2010, it costs about $166 for parts and $39 for labor to replace each of the four oxygen sensors. Repairs made, as a result of recalls, are free of charge; owners just need to take their vehicles to an authorized Mitsubishi dealer.
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