O2 sensor question

[Big Poppa Pump]

I was wondering if the 5.7 in my '99 would benefit from prophylactically changing the O2 sensors on the truck. I am not showing a code but my truck has 172k on the original sensors. I heard that that sensors from that era are good for about 80k.

 

[ezdaar]

Yes change them..


pm also in bound.

 

[Big Poppa Pump]

Thanks. Are there two or four on a stock setup?

 

[2000tahoeZ71]

Four but two different parts. . The front two are the same, and the back two are the same.

 

[Big Poppa Pump]

Thanks. Is it a plug and play swap or splicing wire job?

 

[2000tahoeZ71]

Plug and play.

 

[Big Poppa Pump]

Sweet thanks. I'll check Rock Auto for prices. How do I tell if I have a 4L60-E or 4L80-E transmission code?

 

[2000tahoeZ71]

If you have amazon prime, they are usually the way to go. Make sure you get AC Delco part. rock auto usually is a little cheaper than amazon, but will get you with shipping.

 

[ezdaar]

Just replace the front two. Ignore the rear.


Look at pan shape to determine trans type.

 

[Big Poppa Pump]

Just replace the front two. Ignore the rear.


Look at pan shape to determine trans type.

Thanks. Is there a pic example of which is which?