Silverado, Sierra & Fullsize Pick-ups The Silverado & Sierra have been two of the best selling trucks in the US for decades, and is truly proven to be "like a rock".

2014 Chevy Silverado

2014 Chevy Silverado

Platform: Truck, GMT 400, 800, & 900

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Old

Dec 8, 2013 | 6:16 AM

#1

ChevyJo

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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

Dec 8, 2013 | 9:04 AM

#2

oldchevy

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From: Miami, FL.

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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

Dec 8, 2013 | 2:40 PM

#3

ChevyJo

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Quote:

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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