03 LeSabre O2 Sensor.
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Joined: Feb 2016
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03 LeSabre O2 Sensor.
Need Help locating the Bank 2 Sensor 1 O2 Sensor in my 03 LeSabre. Have spent about 3 hours on Google and haven't found anything Super Helpful.
Go In from the Top or From Underneath? Only info I could find is that the sensor should be between the Rear Cylinder Bank and the Joint where the Exhaust from the front and rear meet.
Go In from the Top or From Underneath? Only info I could find is that the sensor should be between the Rear Cylinder Bank and the Joint where the Exhaust from the front and rear meet.
Senior Member
Joined: Oct 2016
Posts: 409
From: Minot, ME
That's a tough one. If it's a transversal V6, it does probably have a sensor for each bank then (4 cylinder's single) and it would be accessible by putting front up on ramps? Don't know Buicks well, our first is a '16 LaCrosse. Doubt this is exact and of a '16 LaCrosse model, crazy exhaust...... But it's way quiet, very desirable for a "6". Not like my Boss 302 with unmuffled sidepipes (legal) lol.
Last edited by Rich B.; Sep 4, 2017 at 05:59 PM. Reason: Reedit, must have 2 sensors not 1 (4 cyl.).
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Apr 12, 2009 11:06 AM