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How do i install a o2 sensor on 2005 trailblazer

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Posted on Jan 02, 2017

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SOURCE: how do I change o2 sensor on 2005 cobalt

Hi, place the Cobalt in "Park" on a level surface. Allow the Chevy to sit for 10 minutes. This will allow components to cool enough to touch but still be warm, which is ideal for replacing the oxygen sensor. Open the hood of the Cobalt and identify the oxygen sensor. Look for a white, rubber, plug-type sensor on the passenger side of the exhaust manifold; this is the oxygen sensor. Use a socket wrench paired with an oxygen sensor socket to loosen the sensor. Turn the wrench counter-clockwise until the oxygen sensor is loose. Remove the sensor from the manifold by pulling it off. The sensor will come off without much force. Insert the replacement oxygen sensor onto the manifold. Secure the sensor by pushing it into place until the sensor clicks. Close the hood of the Cobalt.
Take care

Posted on Jul 24, 2010

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SOURCE: how do I change o2 sensor on 2005 cobalt

I always star by lubricating the sensor with a spray lubricant or penetrating oil,then locate the wiring harness on the one you are changing since there are more than one;There is a tool that fits the sensor you may have to buy unless you can find one in your shop, by trying it on the new one you are using to replace the old one with., Turn it counter-clockwise gently until it breaks loose. Access may be a problem. Once you have the old one out, installation is the reverse. Adhere to torque specs. The location is usually on the exhaust manifold before and some after the catalytic conveter Some are located on the exhaust pipe after the manifold. Chevy cobalt has one located betweenthe engine and firewall just under the hood.

Posted on Jul 24, 2010

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