Not sure how many oxygen sensors my truck has.
Jan 13, 2017 at 5:57 PM
number of oxygen sensors
2005 CHEVROLET TRAILBLAZER
EDGAR BARKER
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Hi Doc
This is an inline six cylinder. This truck only has two. One upstream and one downstream.
This is an inline six cylinder. This truck only has two. One upstream and one downstream.
Jun 28, 2021 at 8:02 PM
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Hello,
This vehicle has 2 oxygen sensors.
One located on the exhaust manifold (upstream), and the second one is located after the catalytic converter on the exhaust pipe (downstream).
Here is a helpful guide on replacing oxygen sensors:
https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor
I have attached diagrams as well as replacement procedures for both of the sensors below.
Please let me know if you have any questions.
Thank you.
This vehicle has 2 oxygen sensors.
One located on the exhaust manifold (upstream), and the second one is located after the catalytic converter on the exhaust pipe (downstream).
Here is a helpful guide on replacing oxygen sensors:
https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor
I have attached diagrams as well as replacement procedures for both of the sensors below.
Please let me know if you have any questions.
Thank you.
Images (Click to enlarge)
Dec 17, 2021 at 11:28 AM