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2003 Chevrolet S10 Question: Check engine light on. O2 sensor problem. Loud rattling noise.

 

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mstinson, Palmetto, FL, August 15, 2012, 08:37
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My check engine light came on and I took it to an auto parts store. They said it was an o2 sensor. The truck makes a loud rattle underneath.Its louder with the a/c on. Could this be my catalytic converter?

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  • Answer #1

    pushrod August 15, 2012, 21:31
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     Master

    Yep,time to replace the cat,with OE.style and the downstream O2.

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