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Big Red
Dodge Dakota
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10/06/2002
11:25:45
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 Subject: O2 sensor
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Message:
Which O2 sensors am I supposed to replace when I do it, all of them or just specific ones? Are some more prone to going bad or more important? Thanks
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Big Red
Dodge Dakota
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10/06/2002
11:27:23
|  RE: O2 sensor
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Message:
Oh yeah, I have a 99 3.9 sport automatic.
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Lesley
GenIII
10/06/2002
14:37:36
| RE: O2 sensor
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Message:
Are they bad? The dealership can test them on the computer. On mine, I have a pre-cat and a post-cat, if the pre-cat one is not working, the fuel/02 mixture can be off, and it can cause your cat to overheat. They're pretty expensive pre- $99, post - $120 Canadian so I wouldn't change them unless you have to.
97 3.9 CC Sport. JBA stainless headers, Borla Turbo XL stainless muffler & tip, 17 x10 Boyd Coddington Smoothies, FMS injectors, V8 TB, Quick D stainless air intake, Have but not Installed yet: 5.9 litre 360
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Big Red
Dodge Dakota
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10/06/2002
18:38:31
| RE: O2 sensor
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Message:
Wow, I didn't know that they were that expensive! Mine are not bad, but I was just going to change them as preventative maintenence. It is recomended to change your O2 sensor at a certain mileage. But, now that I know the price I just might wait a little longer.
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street guy
Dodge Dakota
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10/12/2002
13:51:34
| RE: O2 sensor
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Message:
hey lesly come on down to ohio they sell them down here at Murray's for a whole lot less.
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