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O2 Sensor replacement


hoodilio

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Does anyone have any idea on how to change/replace an O2 sensor. Where exactly is it located, and does anyone have a procedure on how to replace it (like steps). No need to bring the car to a shop if its easy enough, know wat i meen.

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Its on the rear exhaust manifold. Rotate the motor to allow access, unpluge the connector for it, get a 7/8in (I think) wrench, put it down over the O2, and take it off. Get a new one, put it back in, plug the connector up, and you're good to go

 

Robby

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Kool thanx man, i'll give it a shot, i ain't going to be strugling to reach it once i rotate the engine forward am I (doesn;t matter anyway, its gonna be changed one way or another)

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Its not too hard to get too with the motor forward. Its kinda tight, but like you said, it has to be done. Oh, the stock wire on the O2 is green, if that helps you find it

 

Robby

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I dont think you need to rotate the engine its right there were the crossover meats the rear manifold

 

yeah, on further review he did say 3100, so yeah, its where you said it was, I gave the 3.1L placement

 

Robby

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Ok, sounds good, but i got another question, were the hell can a person buy AC Delco o2 Sensors. Neither Napa, Autozone, Advanced auto parts, summit racing, or jeg's caries them. Do i have to go to a gm dealer or something. So frustrating that the AC Delco shop near my house won't sell parts, they will only install ones u buy from them.

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