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How many oxygen position sensors does a 2002 Chevy Trailblazer have Auto store told me 2 mechanic told me 1?
Just look and count them. They will be located on the exhaust system. Start at the exhaust manifold and go backward. There are upstream and downstream O2 sensors. Upstream is located before the catalytic converter and downstream is located after.
Yes, there are 2 - an upstream and a downstream, but they are pretty difficult to count unless you know what you are looking for and where to look for them. The upstream sensor is located on the exhaust manifold on the passenger side - if you look down from the top of your engine on the passenger side, you can see it on the side near the bottom of the engine. The downstream sensor is located around the catalytic converter (in the middle, under the vehicle).
What else can I help you with?
Where are the oxygen sensors on an 08 Chevy Trailblazer?
All O2 sensors are threaded into the exhaust system at various points.
How many oxygen sensors on an 04 Chevy Trailblazer?
There are two. One on the exhaust manifold and one just after the catalytic converter. If in doubt replace both. www.trailvoy.com Trailblazer enthusiasts forum
What are four sensors used in automobiles?
Oxygen, temperature, speed, throttle position.
Where is the OXYGEN sensor on a 2007 Chevy Trailblazer?
The oxygen sensor on a 2007 Chevy Trailblazer is typically located in the exhaust system. There are usually two oxygen sensors: one positioned before the catalytic converter (upstream) and another after it (downstream). To access the sensors, you may need to lift the vehicle and work under it or remove certain components for better visibility. Always consult the vehicle's service manual for specific locations and details.
How do you replace Volvo s80 oxygen sensors?
One can replace the oxygen sensors in a Volvo S80 by them selves by utilizing the help of a Chiltons manual on Volvo S80s. The faster route though more expensive, would be to enlist the help of a certified Volvo mechanic.
How many oxygen sensors are on a 2003 Chevy trailblazer?
It has 4 and there all screwed into the exhaust system. There will not be any after the muffler. There about 3 to 4 inches long with an electric wire hooked to them.
Where is the oxygen sensor located in a 2005 Chevy Trailblazer?
There are two Oxygen sensors on the Trailblazer. One on the upper exhaust manifold and one after the Catalytic conveter. They can be unscrewed however using a good loosening solvent and and some patience. Sometimes starting the engine to warm it up briefly after the solvent has had some time to work will help.
Does a 1988 Ford Ranger have o2 sensors?
I'm not a mechanic / technician but on a 1988 Ford Ranger there might be ( 1 ) oxygen sensor ( upstream sensor )
What sensors are on the exhaust manifold and are those also oxygen sensors?
Usually oxygen sensors are what would be screwed into the exhaust manifold.Usually oxygen sensors are what would be screwed into the exhaust manifold.
Where is the middle oxygen sensor on a 1997 Mercury Villager?
I wasn't aware that there was a middle oxygen sensor. I have a 1997 Villager that was vandalized and the catalytic converter and O2 sensors were stolen. From what my mechanic tells me and Auto Zone there are only 2 sensors, one in front of the catalytic converter and one behind it.
Where are the oxygen sensors on a 2002 Mustang?
oxygen sensors are part of the exhaust system
Does a 1989 Chevy truck with a 350 have oxygen sensors?
yes, it does have Oxygen sensors
