O2 Sensor Problems of Toyota 4runner
Toyota 4runner owners have reported 2 problems related to o2 sensor (under the electrical system category).
#1 - O2 Sensor problem of the 2003 Toyota 4runner
The vehicle involved is a 2003 Toyota 4runner. The VIN of the car is JTEBT17R93_. On approximately February 28, 2012, the abs/trac control/vsc lights came on and remained lit on my 2003 Toyota 4runner. I called the dealership and they said to bring it in right away. They diagnosed the car and came up with "no sensor reading?. It cost me $150 for the diagnostic test. I picked up the car and a few weeks later I brought it back for the same problem. The computer then indicated that there was a faulty O2 sensor which they replaced my cost was over $650. The next week the lights came on again. The dealership kept the car for a few days but later reported that they could not duplicate the problem. They told me that I should wait until it got worse and bring it back. I suffered with this problem for months. I say suffered because when I was in park and these lights came on, I could not shift out of park. The lights would eventually go away and allow me to drive. On 8/24 the problem became worse. I could not shift my car out of park for more than 15 minutes on over 10 different occasions. The warning lights remained lit almost constantly over 3 days. When I called to return the car to the dealership on 8/27, the service person said that she thought there was a recall associated with that issue, but then told me that there was not. Later that day, they called and said that they again could not replicate the problem. After a quick internet search, it seems that many people have had the same experience that I have had on various Toyota vehicles. I feel an investigation is appropriate in this instance. The failure date was Tue., Feb. 28, 2012.
See all problems of the 2003 Toyota 4runner.
#2 - O2 Sensor problem of the 2004 Toyota 4runner
The car involved was a 2004 Toyota 4runner. While driving, the cel (check engine light) came on and the vsc trac and vsc off lights came on as well. Apparently Toyota disables vsc when the cel is triggered. In my case, the 2 times it has occurred has been due to emissions related failures (1st time the cat failed, 2nd time one of the O2 sensors failed). In the 1st case, I immediately took the vehicle to the dealership as I was approaching the end of the emissions warranty. They made the repairs and cleared all the codes so wasn't aware that the vsc system was actually disabled. The 2nd time (O2 failure) I replaced the failed O2 sensor, the cel has cleared, however the vsc lights are still on and vsc is disabled. I have serious concerns that Toyota disables key safety systems due to emissions related failures especially given the inherent stability problems with SUV's. If I'm on a trip with my family and an O2 sensor fails, or a catalytic converter fails, or the gas cap fails, key safety systems that help keep my family and I safe should not be disabled! I think this deserves an investigation. It was 04/06/11 when this o2 sensor issue occurred.
See all problems of the 2004 Toyota 4runner.
Other Electrical System related problems of Toyota 4runner:
|Problem Category||Number of Problems|
|Electrical System problems||19|
|Instrument Panel problems||4|
|Starter Solenoid problems||2|
|Dashboard Failed problems||2|
|O2 Sensor problems||2|
|Electrical Failure problems||1|
|Underhood Wiring problems||1|
|Starter Relay problems||1|
|Ignition Module problems||1|
|Trunk Wiring problems||1|
|Car Will Not Accelerate problems||1|