2002 Toyota 4Runner Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2002 Toyota 4Runner
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2002 Toyota 4Runner ProblemsAutomatic Transmission May Not Shift Correctly at High Mileages
At higher mileages, (125,000-150,000) the automatic transmission may not shift correctly. This can be caused by the throttle position sensor being out of adjustment or a shift solenoid needing to be replaced. Typically the transmission does not need to be completely overhauled.
The EGR System tends to get restricted or blocked with carbon after 100,000- 125,000 miles which will cause an emissions test failure for NOX. If the EGR system is equipped with an EGR temperature sensor it will trigger a Check Engine Light for improper EGR flow. The repair is to clean out the EGR passages and the EGR Temperature sensor. Our technicians tell this repair is pretty straight forward and takes about 1-1.5 hours. It is also wise to verify the EGR system components i.e. the Transducer, EGR Valve and VSV Solenoid at this time.
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.
2002 Toyota 4Runner Questionsfirst thing in morning it has a high squell sounds like the brake vaccum canste (1 answer)
it is every morning and it use to stop but now it keeps making thr squell sound and them it sounds like its getting vaccum them after car heats up it quits.won't here it again till u let car sit for long time.
2002 Toyota 4Runner RecallsToyota Recalls 2001-2004 Trucks Due to Scratched Lower Ball Joints
Toyota has recalled 2001-2004 Tacoma, 2002-2004 Tundra and Sequoia, and 2001-2002 4Runner models because the surface of the lower ball joints may have been scratched during assembly, which may have compromised their integrity. The ball joints may loosen and fall out and the driver may experience a loss of steering control. Dealers will replace the front suspension lower ball joints.