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2014 Chevy Silverado
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Old December 8th, 2013, 6:16 AM
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Default What's this ?
Hello,

I've marked there is a sensor going in on the front of the exhaust. What's that for ?

THx
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Old December 8th, 2013, 9:04 AM
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Do you mean on the exhaust before the catalytic converter? If so then it is the pre cat oxygen sensor.
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Old December 8th, 2013, 2:40 PM
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Originally Posted by oldchevy
Do you mean on the exhaust before the catalytic converter? If so then it is the pre cat oxygen sensor.
yes it's where the headers pass out of the motor. I think its that what you mean.
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