Service engine light 2001 GMC Sierra 4.8L

Tiny
ATSFDUDE
  • MEMBER
  • 2001 GMC SIERRA
  • 2WD
  • AUTOMATIC
  • 143,000 MILES
Have a 2001 GMC Sierra. Service engine light came on and we had to have the O2 sensors replaced. Now, less that 72 hours after the work was done, the light has come on and gone away at least once. And now it is back on again. Any ideas.
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Monday, December 13th, 2010 AT 11:22 AM

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Tiny
DOCFIXIT
  • EXPERT
Need to know original codes and p[resent codes
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Monday, December 13th, 2010 AT 1:45 PM

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