2005 Pontiac Grand Am low mpg

2005 PONTIAC GRAND AM
78,000 MILES • 6 CYL • FWD • AUTOMATIC
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IRONMIKE1962
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  • 2 POSTS
why am I getting considerable low fuel mileage all of the sudden
Sep 8, 2009 at 12:06 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Has the check engine light come on? Also, have you lost power or is the vehicle running differently?
Sep 8, 2009 at 8:49 PM
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IRONMIKE1962
  • MEMBER
  • 2 POSTS
Hey Jacob,
No and No, but last winter when it was freezing up here I could smell gas but it only lasted a couple of days.
Sep 9, 2009 at 7:52 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
If I had to guess, I would say an oxygen sensor is bad, but I can't be sure without a code from the computer. Make sure the air filter is clean and there are no obstructions in the airway.

Let me know what you find.
Sep 9, 2009 at 7:53 AM
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