Engine light- O2 sensor

TONYBUM13

MEMBER
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.

Sunday, July 8th, 2012 AT 9:41 PM

9 Replies

SATURNTECH9

MECHANIC
30,869 POSTS

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.

Was this

answer

helpful?

Yes

Sunday, July 8th, 2012 AT 9:58 PM

RASMATAZ

MECHANIC
75,992 POSTS

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

Was this

answer

helpful?

Yes

Sunday, July 8th, 2012 AT 11:18 PM

SATURNTECH9

MECHANIC
30,869 POSTS

Thanks for pitching in rasmataz my friend.

Was this

answer

helpful?

Yes

Sunday, July 8th, 2012 AT 11:29 PM

RASMATAZ

MECHANIC
75,992 POSTS

No problem amigo-same goes to you with me-

Was this

answer

helpful?

Yes

Monday, July 9th, 2012 AT 1:56 AM

SATURNTECH9

MECHANIC
30,869 POSTS

Not a problem I know we are the dynamic duo lol.

Was this

answer

helpful?

Yes

Monday, July 9th, 2012 AT 5:53 AM

TONYBUM13

MEMBER
12 POSTS

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!

Was this

answer

helpful?

Yes

Monday, July 9th, 2012 AT 1:05 PM

RASMATAZ