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From Underneath the vehicle locate the sensor and using an open end box wrench lossen and remove the o2 sensor follow the wire up into the engine compartment dissconnect from the connection, plug in the new 02 sensor and carefully fish it through so that you can install it as the old one was removed

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โˆ™ 2006-03-29 04:20:34
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Q: How can you change oxygen sensor on the maniflod a 91 Chevy lumina?
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