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Old 08-24-2005, 08:56 PM   #1
stinka
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Default How long does it take to install o2 sensor?

Hello,

I had autozone check the SES light today, and unfortunately, it read that I had a malfunctioning rear 02 sensor.

I would have to get a mechanic to install a new one for me, (I'm a lady, I cannot do this myself). I would like to know if this is about an hour's worth of labor? I know about how much the sensors cost, I just don't want to get ripped off at the auto shop with labor...

Thanks!

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Old 08-24-2005, 09:02 PM   #2
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Default Re: How long does it take to install o2 sensor?

The rear 02 sensor takes about 10 minutes to replace on a bad day...


as long as the rear exhuast pipe is not overly rusted. (not likely, since it's stainless steel)

count on another 10 minutes to check/reset any codes in the engine computer.

whole job should not be more than 1/2 hour.



And... I have seen many ladies who were infinitely more qualified to change something as simple as an 02 sensor than any of the men they chose to associate with. Don't sell yourself short, anyone with the right sized wrench can change a rear (or front) O2 sensor.

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Old 08-24-2005, 09:09 PM   #3
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Default Re: How long does it take to install o2 sensor?

Quote:
Originally Posted by Saturn-Eh!
The rear 02 sensor takes about 10 minutes to replace on a bad day...


as long as the rear exhuast pipe is not overly rusted. (not likely, since it's stainless steel)

count on another 10 minutes to check/reset any codes in the engine computer.

whole job should not be more than 1/2 hour.



And... I have seen many ladies who were infinitely more qualified to change something as simple as an 02 sensor than any of the men they chose to associate with. Don't sell yourself short, anyone with the right sized wrench can change a rear (or front) O2 sensor.
Thanks so much...I'm willing to try anything.. I know where the front sensor is. But unsure of the rear. When the guy at autozone looked underneath my car, he pointed near the front of the cat convertor. I don't know if I feel comfortable going under my car

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Old 08-24-2005, 09:13 PM   #4
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Default Re: How long does it take to install o2 sensor?

you can change it yourself if you have ramps to get the car off the ground. once you get underneeth it it's really obvious where it goes. get one from Saturn and it will have the connector on it to make it easy to connect to the wiring harness. you may need a special socket to unscrew it and install the new one from the pipe behind the cat. some parts stores will loan it to you.

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Old 08-24-2005, 09:15 PM   #5
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Default Re: How long does it take to install o2 sensor?

It is actually to the rear of the catalytic converter.

It is about as complex to replace as the spark plugs you have already done.

Just undo (counter clockwise) the sensor, and then unplug the wire connector. Install is the reverse.

As for being under the car- heck, that's the mark of a true do-it-yourselfer.

Jack up the car (the spare tire jack in the truck will work if you don't have access to a better one) and then (do not omit this step) support the car on jackstands. with the car raised (on the driver's side) you will have enough access to remove the sensor. See if autozone will lend you the correct wrench if needed.

Good luck.

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Old 08-24-2005, 09:26 PM   #6
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Default Re: How long does it take to install o2 sensor?

Quote:
Originally Posted by Saturn-Eh!
It is actually to the rear of the catalytic converter.

It is about as complex to replace as the spark plugs you have already done.

Just undo (counter clockwise) the sensor, and then unplug the wire connector. Install is the reverse.

As for being under the car- heck, that's the mark of a true do-it-yourselfer.

Jack up the car (the spare tire jack in the truck will work if you don't have access to a better one) and then (do not omit this step) support the car on jackstands. with the car raised (on the driver's side) you will have enough access to remove the sensor. See if autozone will lend you the correct wrench if needed.

Good luck.
awesome thanks... I'm going for it... I have a a little project this weekend..

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Old 08-24-2005, 09:46 PM   #7
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Default Re: How long does it take to install o2 sensor?

And let's not forget...PB Blaster is your friend in this operation.

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Old 08-24-2005, 10:48 PM   #8
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Default Re: How long does it take to install o2 sensor?

you may also need to buy a special O2 sensor socket. or you can just use a wrench, but if its stuck in there the socket would easier.

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Old 08-25-2005, 07:33 AM   #9
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Default Re: How long does it take to install o2 sensor?

Quote:
> Fm Saturn-Eh <
> Just undo (counter clockwise) the sensor, and then unplug the wire connector<
Prior to the physical act of undoing the sensor, you may want to apply a few drops of a product called Liquid Wrench. I actually use a syringe to apply just a couple of drops -- thus not making any mess.

Quote:
> Fm Wolf <
> And let's not forget...PB Blaster is your friend in this operation. <
PB Blaster is a similar product and comes in a spray can.

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Old 08-25-2005, 10:30 AM   #10
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Default Re: How long does it take to install o2 sensor?

when my 02 sensor went out I ended up having to buy a new cat. I'd been driving in Utah where liberal use of salt to keep ice off the roads is an understatement. The sensor had rusted into the bung so tight it was impossible to get off. The saturn dealer broke his socket and rounded off the wrench flats on the sensor before turning me away, I soaked it in penetrating oil overnight, clamped a vice grip to it and whacked it with a hammer for about 30 minutes without results. I'm not sure of road conditions in MN, but be prepared to put a lot of force on the wrench to get the sensor out.

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