Having problems with your 2001 Pontiac Bonneville ?
Where is bank 2 02 sensor on 2001 pontiac bonnieville 3800 v6
Bank 2 is the exhaust side, that is right behind the alternator, on the pic below, if you draw a line between 38 and 00 and go straight to the top you should see it, its going to be down a little, may be in a tight spot, but you will have room to get it out, just take off that cover, and you should be fine, and to take off the cover all you do is take off the oil filler tube, and it lift up at a acngle, and it will come off and the O2 sensor is screwed into the exahaust...which looks like this...but keep in mind that there are two..one is before the Catilictic, and one is after..The one before the code should say, Bank 2 sensor 1, but after the code should say, Bank 2 sensor 2, so make sure you change the right one...however Bank 2 sensor 2, you have to go under the car to change it...Goodluck....The pics wont post..they are too big..
Repair Help & Product Troubleshooting for 2001 Pontiac Bonneville
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