check engine light on

Bassam Awad
0

Asked by Bassam Mar 04, 2010 at 02:53 PM about the 2005 Chevrolet Silverado 2500HD 4 Dr LT 4WD Extended Cab SB HD

Question type: Maintenance & Repair

Check Engine light came on, took it to Autozone, and code came with O2 sensors (all four) were bad.  This does not make sense to me for all 4 to go bad at the same time.  I asked if they can reset the code, but they said it was illegal to do so.  My next move is to disconnect the battery and see what happens.  Any thoughts?

3 Answers

Larry Quigley
5,080

Other problems could be causing it to think all four are bad. Typically it is something emission related like the a blown fuse on something like the 02 sensor heaters. What error code do it give?

1 out of 1 people think this is helpful.
donnielee0822
90

i would just like 2 know how to reset the engine light! does anybody know how?

9 out of 9 people think this is helpful.
Larry Quigley
5,080

You can do it with a code scanning tool or by unhooking the battery for a few minutes.

3 out of 3 people think this is helpful.

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