Vehicle Questions and Answers
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To locate the o2 sensor in a 2011 Toyota Sienna, you can refer to this video: https://www.youtube.com/watch?v=Zpd-5z32ZlY. It is recommended to change the air filter every 15,000 to 30,000 miles, while the coolant should be replaced every 60,000 miles. Spark plugs typically need to be changed every 100,000 miles unless you have a copper one, in which case it should be replaced every 30,000 miles. Engine issues such as oil leaks should be addressed promptly, as well as loose gaskets that need to be tightened. If a spark plug pops off, it can cause engine problems, and excessive oil consumption may require more frequent oil changes. One major concern is engine overheating, which can lead to fires and even a car explosion.
The oxygen sensors on a 2011 Toyota Sienna can be found on the exhaust system, both before and after the catalytic converter.