99 GMC Suburban service engine soon light reset  Discussion in
'General Chevy & GM Tech Questions' started by sbrodacz, Nov 23,
2012.    1. sbrodacz      sbrodacz New Member      I have a 99
GMC Suburban. My service engine soon light has been on for two
weeks now. The day it went on I went to autozone and had the
code red. It was the o2 sensor. I replaced the sensor the next
morning. I went back to autozone to have them clear the code but
they said they were not aloud too. I then went to o'rileys to
see if they could reset the code. O'Rileys said they were not
aloud to either. The guy at O'Rileys said the code should clear
after a little while by it's self. The code still has not
cleared. I tried disconnecting the negative cable. I had it
disconnected for two hours this evening and just reconnected it.
The code is still showing. Any ideas on how I can get the code
cleared? Having the service engine soon light on is driving me
nuts!   2. dpeter      dpeter Rockstar 4 Years 500 Posts      I
believe Auto Zone wi