2003 Chevy Astro poor gas millage

2003 CHEVROLET ASTRO
50,000 MILES • 6 CYL • AWD • AUTOMATIC
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BRYANFISH
  • MEMBER
  • 1 POST
Van is rated 16mpg city 20mpg highway Im getting average 12.5 mpg which is 60%highway 40%city.I also have a 1999 astro same van same engine also all wheel drive and with that one I average 17mpg.
Nov 30, 2008 at 11:41 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi:
It could be a problem with an O2 sensor. Have you had the computer scanned for trouble codes? Most nationally recognized parts stores will do it for free. I recommend having it done to see if there are any stored codes.

Let me know what you find.

Joe
Dec 2, 2008 at 4:59 PM
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