2009 Dodge Ram check engine light

2009 DODGE RAM
77,800 MILES • 5.7L • V8 • AUTOMATIC
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MKR24
  • MEMBER
  • 1 POST
My light turned on when I filled the tank and my friend was revving it then it shut off when the tank got about half way but I went to fill it up again and the light came back on I've tried unplugging the battery for a few minutes and had a mechanic reset the codes I just remember the mechanic saying something about vapor what could It be
May 24, 2015 at 3:34 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
either your gas cap wasn't tight which requires at least 3 clicks when putting in fuel or the evap canister solenoid is bad or there is a small leak.
May 24, 2015 at 3:43 PM
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