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Service Engine Soon on

Tiny
NICOLE L KROTZER
  • MEMBER
  • 2003 PONTIAC GRAND AM
  • 3.4L
  • V6
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
My SES light came on I tightened gas cap and it went out. A few msg later it came back on. AutoZone told me I needed to plugs and wires. I got that done and light did not go off. I had them done approximately 3 months ago less than 2,000 miles however light still remains on. Mechanic read code (don’t remember, sorry) was emission leak. Could it be a bad gas cap? Fuel filter or 02 sensor? I appreciate your time and am thankful for your advice.
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Sunday, August 2nd, 2020 AT 11:50 AM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

I need the codes to help you.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Can you go back to the parts store and have them read the codes and let me know the numbers? That will help me narrow the area of failure for you.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

https://www.2carpros.com/articles/how-emission-control-systems-work

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

Roy
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Sunday, August 2nd, 2020 AT 4:14 PM
Tiny
NICOLE L KROTZER
  • MEMBER
  • 2 POSTS
Thanks Roy, I sure will.
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Sunday, August 2nd, 2020 AT 4:39 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Keep us updated.

Roy
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Sunday, August 2nd, 2020 AT 5:19 PM

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