How do get code off for loose gas cap?

2003 CHEVROLET SUBURBAN
12,500 MILES • V8 • 2WD • AUTOMATIC
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ANDYBROWN75
  • MEMBER
  • 1 POST
Vacuum Leak.
Feb 11, 2009 at 6:40 AM
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SQM
  • Experienced Mechanic
  • 6,383 POSTS
Hello,

If you have the check engine light illuminated. You will need to use a OBDII scanner to retrieve the code(s) as well as to clear those code after the necessary repair has been made.

Here is a helpful video that shows exactly how to perform that task:

https://youtu.be/vMwTzURWXmk

I you do not have a scanner you can simply go to your local auto parts store, and they can scan and clear codes for you.

Keep in mind that many times the EVAP leaks can be due to a leaky hose or a stuck open purge valve. So, it is important to know the code(s) as it can help with the diagnostics.

https://www.2carpros.com/articles/evap-system-code-repair

Please let me know of any questions.
Thank you.
Nov 11, 2021 at 6:16 AM
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