Question about 2008 Pontiac Vibe

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Install 02 sensor

Is it hard to do it yourself?

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U may need a special O2 socket, but in most cases just a 12 point 7/8" combination wrench will do, and no it's not hard, it's a 15 minute job..

Posted on Dec 23, 2008


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How to change an oxygen sensor on a 2006 Buick rendezvous

The trouble code should tell you which 02 sensor? The 02 sensors are in the exhaust, sensor 1/sensor2, whatever, bank 1/bank2, whatever, before the cat, after the cat. You have several 02 sensors in the exhaust, don't know which one?
You should be able to remove/install with proper size wrench or deep socket. They do make an 02 sensor socket that has that slot in it, not sure if you need that, though.

Jan 25, 2016 | 2006 Buick Rendezvous

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Locate 02 sensor

On the I6 engine, the precat sensor is located on the passenger side of the engine right below the exhaust manifold. Easty to get to, unplug the sensor and use an 02 sensor socket to remove. Post cat sensor is underneath after the cat. The connector to unplug is located in a difficult position, near the top of the transmission. I find that moving yourself toward the rear of the car and reach in the easiest. As opposed to reaching in right above the 02 sensor.

May 13, 2014 | 2003 Chevrolet TrailBlazer

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2003 impala. Hard starts and fumes smell.

this is what i found for you

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensorwaveform reading should fluctuate. The downstream O2 sensoricon1.png reading should be fairly steady. Typically the P0420 code triggers the Check Engine Light if the readings of the two sensors are similar. This is indicative of (among other things) a converter that is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.

Most likely, the aftermarket cat they installed is a high flow cat. This commonly causes issues with throwing that code on our cars. You can either have an OE cat installed, or just have the code deleted from the PCM by someone that has a tuner.
Good Luck

Jan 10, 2013 | 2003 Chevrolet Impala

1 Answer

I have ab 02 sensor that is bad are they easy to get to and how much is it going to cost me to fix it

You go to NAPA or other auto parts store
buy the sensors and install yourself

Real easy,they should be in the exhaust converter

Only do the front 2, if you have 100,000 miles
on vehicle

Use OEM bosch or ngk sensors
Not a universal type

Feb 08, 2011 | 2002 Ford Escape

1 Answer

02 sensors wiring 2004 hyundai. have a universal 02 sensor doesn't have same amount of wires.

If there is not the same amount of wires it will not work. I can tell you from past experience they may be cheaper but it will cost you in the long run. Do yourself a favor and get the correct O2 sensor for your car. You don't have to get the O.E. sensor from the dealer, you should be able to find a reasonably priced aftermarket sensor that will plug right in.

I’m happy to assist further over the phone at

Oct 03, 2010 | 2004 Hyundai Elantra

1 Answer

2005 aveo (02 sensor replacement)

dont waste your time getting o2 sensors from ebay.
the best thiong to do is get the original equipment for the cheapest price you can find at autozone or advance auto or o reillys or someplace local to you.
see if you think you can find it on the exaust system and take it out yourself.
it is a very easy do it yourselfer if you have the right size wrench and the right part.
just unplug it first then loosen it.
dont plug the new one in untill you have turned the new one all the way in nice and snuggly.
then plug in.have autozone reset the codes for you for free can do this i know you can.
keep me posted
thank you

Jul 18, 2009 | 2005 Chevrolet Aveo

2 Answers

How to change the O2 sensor? Is it complicated?

No it's not hard but you need an 02 wrench and it cost 8 bucks, disconnect the wire harness and put the socket on and unscrew it and install the new one, there are two normally and you need to know if it's #1 or #2 if you have 3 you need to know if it's bank one or bank two or the rear 02 sensor that is after the cat but they all look the same.

Jun 17, 2009 | 2003 Oldsmobile Alero

1 Answer

How do I replace the 02 sensor

well you first need to know which 02 sensor but if you know all it takes is usually a 7/8ths wrench. sometimes you need an 02 sensor socket. but really you unplug it and unscrew it apply the copper anti seeze to threads and install it tighten it up. disconnect battery for 10 min and good to go

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There are fuses for oxygen sensor heaters. Check for 12 volts to the sensor with key on.

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its not hard to change the o2 sensors but if they are baked in which means really hard to break loose u could have problems try spraying them down with p.b blaster and getting them out

Jun 15, 2008 | 1998 Toyota Avalon

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