call a parts store, and ask for two...when he says HEY MORON THERES ONLY ONE(we love parts guys) then you'll know...but
Everyone should have a manual for their vehicle, and the local library should have a professional shop manual available to make copies of for FREE...make the time to take time to read up on your vehicle, and work like the PRO'S! Good luck :)
Dave
I'm not quite sure what the above post is getting at, but it seems to me he's saying there is only 1 O2 sensor. There are in fact 2 oxygen sensors, an "upstream" sensor and a "downstream" sensor. The upstream sensor is located on the exhaust manifold on the passenger side, if you look down from the top of your engine you can see it near the botton of the manifold. The downstream sensor is located just just after the catalytic converter (which is underneath the truck pretty much in the middle)
where is the O2 sensor on a 2002 chevy trailblazer
2002 Chevy trailblazer has a 6 lug bolt
Chevrolet TrailBlazer was created in 2002.
Where is the location of the cooling fan sensor on a 2002 Chevy Trailblazer? Also what is the 800 number for Chevy?
They are screewed into the exhaust system/Pipes. There will not be any after the muffler.
How do you change the spark plugs on a 2002 chavy trailblazer
How do you replace a throttle body on a trailblazer 2002
The 2002 Pathfinder oxygen sensors are critical part of the engine management system. You can find the oxygen sensors in the exhaust system.
Nope!!!
4l60e
www.trailvoy.com Trailblazer enthusiasts forum!
oxygen sensors are part of the exhaust system