Mechanics

ENGINE LIGHT- O2 SENSOR

2000 Chevrolet S-10 • 37,000 miles

I have a 2000 chevy s-10 w/ a 4.3L and engine light is on and the code reader said it was an O2 sensor- Bank 1, Sensor 3. Where is this one located? Also I put a new 195* thermostat in it and its running at 210*, and it is full of coolant.
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Tonybum13
July 8, 2012.



The thermostat temp rating is just the temp the thermostat opens to allow the coolant to flow. Its not the operating temp the engine is going to run though. Also what is the exact code number you have it will be P _ _ _ _?That will really help.

Saturntech9
Jul 8, 2012.
Heated Oxygen Sensor (HO2S) (Bank 1 Sensor 3) (4.3L VIN X)In exhaust system, after catalytic converter.

Rasmataz
Jul 8, 2012.
Thanks for pitching in rasmataz my friend.

Saturntech9
Jul 8, 2012.
No problem amigo-same goes to you with me-

Rasmataz
Jul 9, 2012.
Not a problem I know we are the dynamic duo lol.

Saturntech9
Jul 9, 2012.
Thank u both very much, I had it read at O'reillys and didn't write code # down, my bad! So it running at 210* won't damage it? It varies between 210-215* It also has a new water pump, heater core, and has been flushed!

Tiny
Tonybum13
Jul 9, 2012.
You'll be okay but when the Temp goes beyound 220 and keep raising be concern-

Rasmataz
Jul 9, 2012.
Ok great, thanks again, much appreciated!

Tiny
Tonybum13
Jul 9, 2012.
You're welcome

Rasmataz
Jul 10, 2012.