Sudden drastic gas consumption

GMC
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ODDCHICK
  • MEMBER
  • 2 POSTS
Hello,

I have an older car, a 1991 Corsica. I typically put $20 every 3 days in the tank. However, in just the past month, it has been eating about $100 a week.
I has a full and complete tune up done about 2-3 months ago and there are no leaks. Any clues?
Feb 2, 2006 at 11:48 AM
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CHEVY350GUY
  • ✓ASE Certified Mechanic
  • 109 POSTS
  • ASE Certified Mechanic
check o2 sensor. does it have a 2.8l?
Feb 2, 2006 at 12:03 PM
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ODDCHICK
  • MEMBER
  • 2 POSTS
It is a 2.2, thanks
Feb 2, 2006 at 12:56 PM
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