I need to know exactly where the upstream O2 sensor is located on my vehicle listed above and a diagram if available?
Dec 25, 2023 at 3:31 PM
Where is the upstream O2 sensor located?
2009 CHEVROLET EQUINOX
BILL JOHNSON4
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Hi,
The upstream O2 sensor is at the rear of the engine and mounted on the exhaust manifold. I attached a pic below showing the location.
On this vehicle, there are two sensors, an upstream and a downstream. The downstream is after the catalytic converter and the upstream is before it.
Let me know if this helps or if you have other questions.
take care,
Joe
See pic below.
The upstream O2 sensor is at the rear of the engine and mounted on the exhaust manifold. I attached a pic below showing the location.
On this vehicle, there are two sensors, an upstream and a downstream. The downstream is after the catalytic converter and the upstream is before it.
Let me know if this helps or if you have other questions.
take care,
Joe
See pic below.
Image (Click to enlarge)
Dec 25, 2023 at 10:03 PM