Why is my check engine light still on

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My check engine light came on because my knock sensor for a wet, so I replaced both knock sensors and put everything back together but the check engine light is still on. Do I need to go get the computer reset to get it to go out?

Visitor

in Bladenboro NC

Feb 14, 2017

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What is your question?

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Why is my check engine light still on

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Visitor

in Bladenboro NC

Feb 14, 2017

1 Reply

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pushrodon Feb 14, 2017

You should have had the battery NEGETIVE cable unhooked during knock sensor replacement on the 5.3L engine so that would have cleared the codes .. Now IF for 'some reason' the battery was not disconnected, you can try unhooking the battery NEGETIVE cable for 10 minutes to see if codes clear and light turns off... IF that doesn't work - then a problem still exist and more testing is required!

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Popular Answer

What are the best Chevrolet repair shops?

RepairPal Certified shops can diagnose and repair your 2004 Chevrolet Suburban 1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.