Having problems with your 2004 Chevrolet Silverado 2500HD ?

Oxygen sensor replacement

\015 Engine warning light came on and a machanic attached a test unit. The test show oxygen sensor and machanic reset so light went off. The engine warning light came back on within 24 hours. I want to replace the oxygen sensor(s) meself. Is this something I can do? Where is/are the sensor(s)?\015 Posted / edited by AnonymousUser on : 23-04-2018

Answers :

It's something you can with simple tools, you have four O2 sensors. Your going to have to get the truck rescanned or if you have the DTC code, you can find out which O2 sensor has gone bad so you can replace it. Your going to have Two upstream O2 sensors on each exhaust bank, one O2 sensor before the Catalytic Converter, and the last one after the Catalytic Converter. Its like replacing a Spark plug and you can pick up the O2 sensor at any large Auto Parts store with a can of WD 40. Just unclip the wire leads to the O2 sensor and then with a O2 sensor socket or hint close end wrench and hammer, you can remove the O2 sensor from the exhaust pipe. Good luck and be safe.
Repair Help & Product Troubleshooting for 2004 Chevrolet Silverado 2500HD

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