check engine light staying


Asked by dmorin29 Mar 07, 2012 at 03:36 PM about the 2004 Chevrolet Silverado 1500 Short Bed 4WD

Question type: Maintenance & Repair

dmorin29 answered about a second ago

i have a 2004 silverado and the check engine light came on went to autozone and they scanned it came up o2 sensor replaced it.but service engine light still on diconnected the battery for an hour and light is still on autozone said they will not take code out any ideas how to get the light off?

2 Answers

Larry Quigley

Disconnecting the battery should have cleared the code. Either there is something else wrong or you might have replaced the wrong oxygen sensor. You could spend money on a code scanner to clear it off but more than likely it will come back.

3 out of 3 people think this is helpful.

What was the o2 sensor code. Auto Zone is bad for seeing any code that says O2 sensor and selling you a new one. The O2 sensor has several codes it can throw. Lean condition. Rich Condition. Heater circuit. Responsiveness. The first 2 are not a problem with the O2 sensor. The O2 sensor has detected a problem and you need to look elsewhere. What the code was is the best way to proceed.

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