Question about 2001 Oldsmobile Silhouette

2 Answers

Where are the O2 sensors located on a 2001 oldsmobile sillohette 6 cylinder?

Posted by on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Oldsmobile Master
  • 5,763 Answers

The sensors are located on the exhaust system, theres one screwed into the rear manifold and the rest is on the exhaust system, theres always one before the cat converter and one after and depending on the engine size there will be three to four 02 sensors , your van has two 02 sensors they are both on the exhaust here a diagram to help you.Where are the O2 sensors located on a 2001 - 68fa23b.jpg

Posted on Sep 09, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 701 Answers

Hello gregespinc: My name is Roger and I will help you. There are two oxygen sensors. One is located in the exhaust manifold at the firewall area. The other is located just in front of the catalytic converter. Should you need further help please just ask. Please rate the answer. Thank You for using Fix Ya. Roger

Posted on Sep 09, 2010

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Hey I have a 2001 Oldsmobile aurora v8 4.0 trying to located my engine temperature sensor for my car n my o2 sensors also please help

Your Temp sensor may be hidden behind Your housing unit for the thermostat, and the O2 Sensor are alway screwed into the exhaust there is an upper and lower O2 sensor meaning Upper is up high on the exhaust near the engine and the lower one is down by the catalytic converter.

Sep 05, 2016 | 2001 Oldsmobile Aurora


Where is O2 oxygen sensor Bank 1 sensor 2 on Pontiac Atzec.


The sensor two is the one located after the catalytic converter. While sensor one is always the O2 sensor located on the engine side.

Bankone refer to the sensor located in line with cylinder number one (theone that is sparking first i order). The firing order on Pontiac Atzec is as follows:

on the 4 Cylinder engine : 1-3-4-2

on the 6 Cylider version : 1-6-5-4-3-2,

This means that the cylindernumber one is located on the left hand side.

See the diagram below explaining how to access sensor two. The protective cover is not present on all models:


Note: before replacing the O2 sensor (lambda sensor) ensure that the problem is not wiring or connector.


on Feb 21, 2010 | 2001 Pontiac Aztek

2 Answers

I have research around and found that the Bank 1 sensor 3 O2 sensor is post Cat. But when I got under there I dont see anything that could resemble a sensor. Where is it. Please help. Marc

try this
ALLDATA Editor's Note: Always verify #1 cylinder location prior to diagnosis and repair.

- Cylinder bank number one is the bank that contains number one cylinder.

See: Firing Order

printer.png View & Print Options 80_fm96hmob2_006a-159za.png&width=490&height=209&displaytype=display&imgrotation=&links=
Cylinder #1 on left side.

printer.png View & Print Options 29_fm96hmob2_006a-159z.png&width=469&height=193&displaytype=display&imgrotation=&links=
Cylinder #1 on right side.

- The first oxygen sensor in cylinder bank # 1 is numbered O2 Sensor 1/1.
- The second oxygen sensor in cylinder bank # 1 is numbered O2 Sensor 1/2.
- A third oxygen sensor in cylinder bank # 1 would be numbered O2 Sensor 1/3.
- The first oxygen sensor in cylinder bank # 2 is numbered O2 Sensor 2/1.
- The second oxygen sensor in cylinder bank # 2 is numbered O2 Sensor 1/1.

- If a V-6 or V-8 vehicle only uses one downstream Heated Oxygen Sensor (HO2S) it is numbered O2 Sensor 1/2, even if it uses two upstream HO2S.
var classElements = new Array(); var node = document; var tag = 'a'; var els = node.getElementsByTagName(tag); var elsLen = els.length; var pattern = new RegExp("(^'\\s)specs_note(\\s'$)"); for (i = 0, j = 0; i

Jun 03, 2011 | 2001 Dodge Stratus

1 Answer

Trying to find p0131 which is on a 2001 oldsmobile intrigue transmission help me locate?

p0131 refers to low voltage reading on the o2 sensor. Should be the bank 1 which is the o2 sensor closest to engine. Inspect wires and/or replace sensor.

Mar 16, 2011 | 2001 Oldsmobile Intrigue

2 Answers

2001 Olds Alero oxygen sensor bank 1 P0135

p0135 indicates bank 1 sensor 1 which is before the cat.

May 22, 2010 | 2001 Oldsmobile Alero

1 Answer

How do i replace O2 sensor on 2001 bmw 530. it is the O2 sensor closet to firewall Cylinders 4-6

The O2 sensor will be on your exhaust pipe before the catalytic converter. Some vehicles have 2.

Feb 19, 2010 | 2001 BMW 5 Series

5 Answers

I HAVE TO REPLACE A 02sensor on a 2001 taurus V6 30 the code say bank2 senor2 where is it located

Bank is referring to a collection of cylinders. I.E the curb side cylinders. Sensor 2 mean cylinder 2 in bank 2. It is not a O2 sensor. The computer is noticing a fault in a middle cylinder...check spark plugs for abnormal or premature damage

Oct 23, 2009 | 2001 Ford Taurus

1 Answer

Location of the bank 1 sensor 2 O2 sensor on a 2001 ford escape

B1 means the sensor is located on the same bank of the engine that has the #1 cylinder. B2 is located on the opposite bank.
S1 means the sensor is located BEFORE the catalytic converter
S2 means the sensor is located AFTER the catalytic converter

You didn't say which engine you have, so I've included the diagrams of both 4 cyl and 6 cyl so you can see the banks


Oct 20, 2009 | 2001 Ford Escape

2 Answers


Standing in front of the car looking at the engine bank 1 is the cylinders on the front of the engine. These are cylinders 1-3-5. On the rear is bank 2 cylinders 2-4-6. The O2 sensor is located screwed into the exhaust manifold or the exhaust pipe on the front of the engine.

Oct 09, 2009 | 2001 Pontiac Grand Prix

1 Answer

O2 Sensor

It depends on if its a 4 or 6 cylinder engine.4 cylinder will have 2 one before and one after the cat.6 cylinder engine will have 3 one at each exhaust manifold and one after the cat.

Mar 04, 2009 | 2001 Oldsmobile Silhouette

Not finding what you are looking for?
2001 Oldsmobile Silhouette Logo

520 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts


Level 3 Expert

75817 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8180 Answers

Are you an Oldsmobile Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides