2004 Buick Ranier Gas Millege Really Bad Took Because Engine Light On They Put

2004 BUICK RANIER
11,200 MILES
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EDIEMAIDEN
  • MEMBER
  • 3 POSTS
My gas millege is really bad and took it in because the engine light was on.they put it on a engine check with po410. they said it would cause bad gas millege and would cause the cad. converter to go bad .is this easy to change and how.
Nov 30, 2012 at 3:14 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
this will cause bad fuel pmileage as most check engine things do.i'm sending a tip thing and have your secondary air inections system checked, somethines ti s a check valvle not working but in the tip it may be your o2 sensor. if you don't want to do it print this out and give to mechanic.
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Nov 30, 2012 at 3:21 PM
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