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  #1  
Old 02-27-2012, 04:36 PM
Maddevill Maddevill is offline
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Talking O2 sensors- how much???

So, I confirmed I have 4 O2 sensors and my mechanic said that according to his vendors they are $102 EACH!!!! Does anyone have a line on better prices? And I cannot use the "universal " type.

Thanks again,
Mad
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Old 02-27-2012, 07:32 PM
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they are like $60 a piece at autozone
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Old 02-29-2012, 01:45 PM
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snrusnak snrusnak is offline
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They vary by vehicle, I've seen them as cheap as $20 and as expensive as $150. Most fall in the middle somewhere.

Why do you want to replace them? The 2 downstream sensors are likely a different part number than the upstream sensors, also. The 2 upstream sensors are the only ones that would cause a real running issue.

Not to knock mechanics, but many of them don't understand how the system works. Often times it can even not be a faulty O2 sensor but something else making the sensor through a code.

You have a check engine light? What's the code?
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Old 03-01-2012, 12:19 PM
Maddevill Maddevill is offline
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Talking O2

Quote:
Originally Posted by snrusnak View Post
They vary by vehicle, I've seen them as cheap as $20 and as expensive as $150. Most fall in the middle somewhere.

Why do you want to replace them? The 2 downstream sensors are likely a different part number than the upstream sensors, also. The 2 upstream sensors are the only ones that would cause a real running issue.

Not to knock mechanics, but many of them don't understand how the system works. Often times it can even not be a faulty O2 sensor but something else making the sensor through a code.

You have a check engine light? What's the code?

I have a code "0300" which is "random misfire" which tells me nothing. The truck runs good but every once in awhile it will drop a couple of cylinders, the check engine light starts flashing and it sets the code. You drive it and it will suddenly fix itself. So, I heard that a bad O2 sensor can do this so maybe I'll just change the 2 upstream ones.
Thanks for the info.

Mad
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Old 03-01-2012, 12:21 PM
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snrusnak snrusnak is offline
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I highly doubt that's a faulty O2 sensor. Sounds like a pcm since it's random.
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Old 03-01-2012, 12:44 PM
Maddevill Maddevill is offline
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But, if it was a coil wouldn't it throw a code for the cylinder that was misfiring? Not a random code.
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Old 03-01-2012, 12:45 PM
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Yeah that's why I edited my post after thinking more about it, I don't believe it could be a coil. More likely pcm. I have never heard of an O2 sensor causing a misfire.
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Old 03-06-2012, 09:02 AM
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Did you figure this out?
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Old 03-06-2012, 12:55 PM
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Talking Well..

I had the oil and spark plugs changed, he read the codes and cleared it. and told me to drive a specific time at specific speeds and come back to the shop. All is good so far and it easily passed smog. So, I guess I wait until something goes bad enough to stay bad. I am going to change the upstream o2 sensors.
Thanks for the help!

Mad
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