Code P0137, how to replace the O2 downstream sensor?

Tiny
LAVELL11
  • MEMBER
  • 2008 PONTIAC GRAND PRIX
  • 5.3L
  • V8
  • TURBO
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Hello, I need details on changing my O2 downstream sensor for a code p0137 bank 1 sensor 2. Any photos will help and what all I need. Thanks
Tuesday, January 23rd, 2024 AT 4:00 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

I attached a pic below showing the downstream oxygen sensor. I need you to confirm something for me.

If I recall, the exhaust on this vehicle has a cross-over pipe that joins the two manifolds together. If that is correct, the sensor will be after the catalytic converter. I attached directions below.

Note: When you replace this, it may be extremely hard to get out. Take your time. Also, when you install the new one, make sure to use an anti-seize product for O2 sensors. Additionally, you will need a special socket to be able to remove and install the sensor that prevents damage to the wiring. Chances are a parts store will lend one to you

Let me know if this helps.

Take care,

Joe

See pics below: Note: The heading indicates it is for bank 1 sensor 2. Then, it is referred to as bank 2 sensor 2 in the directions. I'm not sure why they did that, but if I am correct that the two sides go into one converter, the directions are correct.
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Tuesday, January 23rd, 2024 AT 8:40 PM
Tiny
LAVELL11
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  • 84 POSTS
Okay, thanks a lot for the info.
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Wednesday, January 24th, 2024 AT 2:07 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

You are very welcome. Let me know if there is anything I can do to help.

Take care and feel free to return anytime in the future.

Joe
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Wednesday, January 24th, 2024 AT 5:03 PM

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