When should you replace O2 sensors

When should you replace O2 sensors 3 Answers

I have approx: 154,000 on 2004 Highlander and have read somewhere O2 sensors are only good for 100,00 miles then need replaced. What's the scoop?

Where are the O2 sensors located on a 2001 toyota haighlander V6? 26 Answers

I can visually see one of the O2 sensors on the front of the motor (Exhaust manifold) when I open the hood, but where is the othe O2 sensor located on this vehicle? A picture would be nice. thanks

O2 Sensors 6 Answers

When do you change a Serpentine belt? 2 Answers

How often do you change a serpentine belt on a 2008 Toyota highlander limited

When should I replace the shocks and struts? The ride feels rough to me, but the car does not bounce. 4 Answers

I have a 2008 highlander base AWD. I purchased it certified used in 2010. It now has 76,000 miles on it and it feels like the ride is getting a bit rough. Do I need to replace the shocks and struts...