Immissions

1995 CHEVROLET SUBURBAN
206,000 MILES • V8 • 4WD • AUTOMATIC
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SEASIDEMT
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  • 3 POSTS
My 1995 Chevy Suburban won't pass an immissions test. The muffler was replaced 2 years ago and when it was tested it was rated at 524 and needs to be 220. What could be wrong?
Jul 30, 2011 at 5:05 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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RASMATAZ
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For what gas? Hydrocarbons???????? CO/CO2/O2/NOX?????????????????????????????
Jul 30, 2011 at 8:48 AM
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SEASIDEMT
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Hydrocarbons
Aug 1, 2011 at 5:52 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Try giving it a tune-up and see what happens
Aug 1, 2011 at 5:56 PM
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SEASIDEMT
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thanks will do
Aug 1, 2011 at 7:14 PM