2005 Chevy Silverado Check Engine Light on Even after chang

Tiny
JPING
  • MEMBER
  • 2005 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 55,675 MILES
The Code that Autozone gave me was that the Fuel Cap was not on properly. It was an after market fuel cap that came with the truck from the dealer. I went and bought a new one from the dealer and it ahs been 100 miles since I put the new on. The light is still on.
Sunday, December 6th, 2009 AT 4:35 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
2 things: First, as soon as a parts store gets an EVAP code, they tell you to replace the fuel cap. With that, 90% of the time, the cap isn't the problem. What I need you to do is this. Have AZ reset the light on the computer. After they reset it, let me know if it comes back on with the same code.

I will need to know the code number to determine the problem. Chances are there is a leak in the filler tube (rust) of the vehicle or at some other point.

If the light does come back on, I will explaine what to do next.

Joe
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Wednesday, April 14th, 2021 AT 6:44 PM
Tiny
JPING
  • MEMBER
  • 4 POSTS
I will get that done and get back to you
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Wednesday, April 14th, 2021 AT 6:44 PM

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