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2006 Chevy Silverado Check Engine Light-Fuel System

Tiny
DCI520
  • MEMBER
  • 2006 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 78,000 MILES
I keep getting a check engine light. I had a mechanic run the codes and he got two both having to do with the fuel system. I replaced the gas cap but still have the light. The engine runs fine and the light goes off when it is bitter cold outside but then comes back on. Is this problem common to the Chevy? What are the possible problems. Is it something to do with the emission controls?
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Tuesday, February 23rd, 2010 AT 3:42 PM

3 Replies

Tiny
SCOTTY DEE
  • MECHANIC
  • 592 POSTS
What were the codes? Were they EVAP codes or lean/rich?
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Wednesday, February 24th, 2010 AT 9:38 AM
Tiny
DCI520
  • MEMBER
  • 2 POSTS
EVAO I believe
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Wednesday, February 24th, 2010 AT 10:28 AM
Tiny
SCOTTY DEE
  • MECHANIC
  • 592 POSTS
Really need to know the exact code number to know how to advise you. The good news is, EVAP problems won't make it run bad or cause any long term problems if it persists.
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Wednesday, February 24th, 2010 AT 11:57 AM

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