Report: Oxygen Sensor May Fail
Toyota Sequoia Problem
Average Mileage: 127,000 mi (50,000 mi - 207,000 mi)
Visitor, 2001 Toyota Sequoia
I too have had a problem with the right front O2 sensor in my 2002 Sequoia SR5... My mechanic said not to worry about it unless I just wanted to replace it. However, it does cause the Check Engine light to stay on, so I haven't had that feature for a while, and finally a problem has arisen where it might have saved a more costly repair. It doesn't sound as though replacing it would likely have done much good either though. Seems as though when there is a consistent problem with a part the manufacturer should make good on it.
In all fairness, I have to say that otherwise I love my Sequoia, and it has been a reliable vehicle; only problems since I've owned it (my son had it the first two or three years; bought it new), is the sensor, the back door latch (which also seems to be common to this model), and now a radiator replacement. Have read about the "frame rot" in looking for information today... hope that is not on my horizon. 8/
Visitor, 2002 Toyota Sequoia, 50,000 mi
Check engine light came on. I used a scan tool to identify the cause. It was the right front oxygen sensor. Paid over $200 for the sensor from the dealer, installed it myself, no more problems.
check engine light came on, i ignored for 6+ months because it had happened 5 years before and it cost $1100 in various fixes to resolve; going to pick up again today for $400
Visitor, 2001 Toyota Sequoia, 108,000 mi
Check engine light directed technician to examine catalytic converter. Needs to be replace but procedure calls for moving rear o2 sensors forward and they are so rusted it will cost $2500 to deal with...
over the life of my car I've replaced all 4 O2 sensors at least once, some as many as 2 or 3 times. The front ones are especially irritating as the dealer is usually the only one who has these and they are expensive
Have replaced oxygen sensors and still frequently have problems with them