Toyota 4Runner Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Toyota 4Runner
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Toyota 4Runner ProblemsHesitation or Misfire Due to Failed Mass Air Flow Sensor
When a mass air flow sensor problem occurs, resulting in a loss of power or hesitation on acceleration, the Check Engine Light will illuminate, perhaps indicating random cylinder misfire. The mass air flow sensor may respond to cleaning, but replacement of the sensor is best.
The evaporative emission (EVAP) system may illuminate the vehicle's Check Engine Light due to intermittent failure of the charcoal canister purge control solenoid valve or canister failure. Upon failure of the charcoal canister, debris may circulate around the EVAP system causing other emission control problems.
At 125,000-150,000 miles, the Master Cylinder may need replacing. It is critical to adjust the brake pedal to Master Cylinder pushrod clearance or the brakes will drag and over heat.
Toyota 4Runner QuestionsClutch pedal engages and disengages at the floor (1 answer)
The clutch pedal engages and disengages about about an inch from the floor. Can this be adjusted? Do I need new clutch plates or to rebuild slave cylinder?
I have a high mileage automatic transmission and it slips a little bit. I have tried some conditioners, but they don't seem to help.
Toyota 4Runner RecallsSeat Heater Wiring Shorts And Causes Fire
For vehicles equipped with aftermarket accessory seat heaters, the seat heater elements may short circuit when the seat cushion is compressed, and result in a fire hazard. Dealers will disconnect the seat heaters and refund the purchase price of the seat heaters free of charge to resolve the concern,
The passenger frontal air bag inflator may rupture on deployment, causing metal fragments to come through the air bag and injure occupants. Dealers will replace the passenger frontal air bag inflator or in some cases replace the air bag assembly free of charge to resolve the concern.
The vehicle certification label may indicate the improper load carrying capacity rating for the vehicle. This is because accessories were added to them after the vehicle was built, changing the available load that the vehicle can handle carrying. Dealers will install an accurate label free of charge to resolve the concern.