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Mitsubishi Problems

RepairPal has identified the most common problems for 25 Mitsubishi models based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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Known Problems

The Check Engine Light may illuminate due to one or more engine vacuum leaks. Our technicians tell us these leaks can be caused by damage to seals and/or vacuum hoses as a result of to much ethanol content in the gasoline. Affected hoses and seals must be replaced to correct this concern.

The AC may not blow cold air due to a failed pressure switch. A failed switch will require replacement to restore proper AC operation.

The automatic transmission may fail prematurely requiring overhaul or replacement of the transmission.

The crankshaft pulley bolt may become loose or break causing loss of power steering operation and other related engine accessories. Some of these vehicles may be involved in a recall for this issue. Our technicians tell us that an updated bolt may be available. Replacing as necessary and properly torquing the crankshaft bolt will commonly correct this issue.

It is not uncommon for oil leaks to develop from the valve cover gaskets. Replacement of the leaking gaskets will repair this issue.

The engine may develop a low idle or stalling condition due to a failed idle air control valve. Our technicians tell us the replacement of the faulty valve is required to correct this condition.

The engine may stall or develop a rough idle with the Check Engine Light illuminated and fault code 15 stored in the ECU. Our technicians tell us that the engine electrical grounds are critical, all 5 should be inspected and cleaned as necessary. An additional ground lead kit is also available which can be installed to help correct this condition.

An engine overheating condition may develop due to a failed radiator cooling fan controller. The failed controller should be replaced to correct this issue.

The automatic transmission may develop a 2-3 shift flair. This is commonly caused by an internal fault related to the reverse clutch assembly. Replacement of the rear housing and reverse clutch assembly may be required to correct this concern.

The automatic transmission may develop a 2-3 shift flair. This is commonly caused by an internal fault related to the reverse clutch assembly. Replacement of the rear housing and reverse clutch assembly may be required to correct this concern.

The power windows may fail, often related to moisture inside the door. Affected components will need to be replaced. If possible some type of moisture protection could be added to try and prevent repeat failures.

The sunroof may become stuck in the closed position or require "help" moving forward and backward. The common repair is to replace the guides but often the problem will resurface again.

The heating, ventilation and AC (HVAC) temperature control knob may be hard to turn. Mitsubishi Motors has released a service bulletin outlining the necessary repairs. Repairs involve installing a new air blend door lever and link, lubing the blend door track, and installing a filter on top of the blower motor housing to prevent entry of dirt and debris. If the temperature control assembly has been damaged it will require replacement also.

The automatic transmission may fail prematurely. Transmission overhaul or replacement may be necessary to correct this concern.

The heating, ventilation and AC (HVAC) temperature control knob may be hard to turn. Mitsubishi Motors has released a service bulletin out outlining the necessary repairs. Repairs involve installing a new air blend door lever and link, lubing the blend door track, and installing a filter on top of the blower motor housing to prevent entry of dirt and debris. If the temperature control assembly has been damaged it will require replacement also.