Where are the O2 sensors located?

2005 CHEVROLET SILVERADO

272,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC

APRILDOTY0401

MEMBER
1 POST

Help! Need to replace O2 sensors for bank1 sensor1 and bank1 sensor2. Needing locations and to know part numbers if needed? Please and thank you for all ya'll do!

Feb 18, 2023 at 4:24 PM

JACOBANDNICKOLAS

✓ASE Certified Mechanic
110,194 POSTS

Hi,

Bank 1 on the engine is on the driver's side of the vehicle. If you look below, I highlighted where bank 1 sensor 1, and sensor 2 are located.

Pic two shows the manufacturer's part numbers.

Here is a link that you may find helpful:

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

Also, here is a link that explains how to check an O2 sensor:

https://www.2carpros.com/articles/how-to-test-an-oxygen-sensor-02-sensor

Let me know if this helps or if you have other questions.

Take care,

Joe

See pics below.

Images (Click to enlarge)

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Feb 18, 2023 at 10:10 PM

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