Fuel System
Check engine light, sensors (includes O2 or oxygen sensor), emission control devices (includes EGR), engine computer, engine computer, fuel cap, fuel gauge/sender, fuel injection system, fuel pump, fuel leaks, stalling or hesitation.
What Owners Say
"failure of an emission device caused the 'check engine' light to come on"
Anonymous, MA (2002 Toyota Highlander Limited 3.0-L V6)"Check Engine caution light code indicates a problem with the catalytic converter not working properly"
Allen C., NC (2002 Toyota Highlander Base 2.3-L 4 Cyl)"Catalytic converter failed"
Gordon I., PA (2002 Toyota Highlander Base 3.0-L V6)"To make it run correctly it cost me $1300. It started with engine check light."
Jerry K., NC (2002 Toyota Highlander Base 3.0-L V6)"An ignition module failed, dumping fuel into the cylinder and causing the catalytic converter to overheat"
David G., FL (2002 Toyota Highlander Base 2.3-L 4 Cyl)"check engine light is on less than 3000 miles after having repair"
Anonymous, VA (2002 Toyota Highlander 3.0-L V6)"needed replacement"
Anonymous, OR (2002 Toyota Highlander Base 2.3-L 4 Cyl)"Having issues with my catalytic converters causing the engine light to come on. Do not want to replace them due to excessive cost to replace all 3"
Anonymous, PA (2002 Toyota Highlander Limited 3.0-L V6)"DEALERSHIP DID NOT SUGGEST THIS AS THE PROBLEM, BUT AN ON-LINE SEARCH DID. THE FIX WAS CHEAP BECAUSE IT WASN'T DONE BY THE DEALER"
Patrick C., AK (2002 Toyota Highlander Limited 3.0-L V6)"Cracked fuel cap triggered "check engine" light. Nothing serious, but situation unknown until diagnosed"
Thomas S., TX (2002 Toyota Highlander Limited 3.0-L V6)"check engine light is on frequently. Traced back gas cap. Used a cap purchased at Advance Auto. Light came back on. Bought cap from Toyota dealer-problem solved, but the cap was more expensive"
Anonymous, VA (2002 Toyota Highlander 3.0-L V6)"replace one injector"
Gerald M., CA (2002 Toyota Highlander Base 2.3-L 4 Cyl)"Car does not idle well"
Brian C., ON (2002 Toyota Highlander Limited 3.0-L V6)"The upstream sensor on both banks 1 and 2 failed albeit at different times. Repair involved removing the old sensor and installing a replacement."
Cindy R., VA (2002 Toyota Highlander Base 3.0-L V6)"Very easy to change yourself but the way it was mounted with two bolts made it difficult to do due to rust and bolts breaking. The other sensors are screwed in much better design"
Anonymous, NY (2002 Toyota Highlander Limited 3.0-L V6)"Emission lights on and the mechanist states it is most likely due to the bad sensors"
Anonymous, TX (2002 Toyota Highlander Limited 3.0-L V6)"A couple sensors failed and per mechanic and computer needed to be replaced. Difficulty for shop to get one and overall the cost of two were extremely high, around $1000 for both and time"
Anonymous, OH (2002 Toyota Highlander Limited 3.0-L V6)"Causes Engine light to come on"
Anonymous, MA (2002 Toyota Highlander Limited 3.0-L V6)"Check engine warning light/vsc warning came on. Diagnosed as air fuel ratio sensor. Replaced bank 1 sensor 1 a/f sensor only"
Anonymous, NC (2002 Toyota Highlander Limited 3.0-L V6)"Repeated failure code P1135 for emissions system, dealer changes multiple parts but the problem persists"
Anonymous, OH (2002 Toyota Highlander Limited 3.0-L V6)"The Check Engine light came on and the bank 1 sensor 2 oxygen sensor had to be replaced"
Grace K., NC (2002 Toyota Highlander 3.0-L V6)"Check engine light came on. Solution was to replace sensor"
Anonymous, MA (2002 Toyota Highlander Limited 3.0-L V6)"Sensors went bad because of age, engine light came on. We always maintain our car in top shape, so, we had it fixed"
Anonymous, OH (2002 Toyota Highlander Base 2.3-L 4 Cyl)"Service engine light lead to code suggesting sensor failure"
James H., TX (2002 Toyota Highlander 2.3-L 4 Cyl)"Oxygen sensor failure triggered "check engine" light. Auto tech reported that failed sensor was causing fuel mixture to be out of normal parameters and could contribute to premature failure of catalytic convertor"
Thomas S., TX (2002 Toyota Highlander Limited 3.0-L V6)"There are 2 sensors in the system. One failed first and the second sensor failed about 6 months later"
Alan H., CA (2002 Toyota Highlander Limited 3.0-L V6)"Both catalytic converters have had to be replaced and one of the O2 sensors"
Anonymous, NY (2002 Toyota Highlander Limited 3.0-L V6)"check light comes on"
Anonymous, HI (2002 Toyota Highlander Base 3.0-L V6)"Sensors failed, NOT the system. It was still costly to repair"
Anonymous, CA (2002 Toyota Highlander Limited 3.0-L V6)"2 of the O2 sensors have failed. They cost about $450 each to replace by a mechanic."
Anonymous, WA (2002 Toyota Highlander Base 3.0-L V6)"had to chg.out"
Anonymous, LA (2002 Toyota Highlander Base 3.0-L V6)"Oxygen sensor had to be replaced. I suspect there is a leak in the head gasket that is causing the oxygen sensor to become clogged prematurely with contaminents."
Anonymous, NC (2002 Toyota Highlander Limited 2.3-L 4 Cyl)"seemed routine based on mileage"
Anonymous, CA (2002 Toyota Highlander Limited 3.0-L V6)"check engine light has been an issue turning on and off for the past three years. mechanics pick a code and make repairs."
Anonymous, (2002 Toyota Highlander Limited 3.0-L V6)"Multiple sensors showing"
Brian C., ON (2002 Toyota Highlander Limited 3.0-L V6)"Multiple times per year we have to have the check engine light checked, turned off or reset because the sensors are failing"
Anonymous, MO (2002 Toyota Highlander Base 2.3-L 4 Cyl)"Nox sensor replacement"
Laura S., CA (2002 Toyota Highlander 3.0-L V6)"Check engine light came on and computer scan revealed it was the Air/Fuel Sensor that needed replacing"
Carla R., WA (2002 Toyota Highlander Base 3.0-L V6)"Sensor failed and replaced"
Anonymous, VA (2002 Toyota Highlander Base 3.0-L V6)"Had one O2 sensor replaced, but that did not turn off the warning light. Then had to have another O2 sensor replaced before the warning light went off. In the process had the manifold gasket replaced as well as the ignition coil for cylinder no 1"
Anonymous, AL (2002 Toyota Highlander Limited 3.0-L V6)
"Catalytic converter failed requiring costly replacement."
Anonymous, CA (2002 Toyota Highlander Base 2.3-L 4 Cyl)