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Old 07-17-2014, 05:55 PM   #1
Robert252
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Service Engine Soon light

I have a service engine soon light that comes on after driving anywhere from 3 to 40 miles. Sometimes it goes off but most of the time it stays on until I shut it off and then restart.

The code I read looks like an O2 sensor but it is pretty new.
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Old 07-17-2014, 07:02 PM   #2
LEEVON
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Re: Service Engine Soon light

Year, engine?
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Old 07-18-2014, 07:14 PM   #3
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Re: Service Engine Soon light

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Originally Posted by LEEVON View Post
Year, engine?
1993 4.3 chevy 2 wd xcab silverado
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Old 07-20-2014, 08:54 AM   #4
speedygonzales
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Re: Service Engine Soon light

A lot of O2 defects take a few miles to set a SES light. I once tried Bosch and it took till the next day to show it would not work. Turns out my vehicle could not tolerate Bosch.

What brand did you put in?
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Old 07-20-2014, 10:43 AM   #5
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Re: Service Engine Soon light

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Originally Posted by speedygonzales View Post
A lot of O2 defects take a few miles to set a SES light. I once tried Bosch and it took till the next day to show it would not work. Turns out my vehicle could not tolerate Bosch.

What brand did you put in?
I agree.

Do not use a Bosch oxygen sensor.
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If it is modified from what came stock from the factory, let us know that too.
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