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Immissions

Tiny
SEASIDEMT
  • MEMBER
  • 1995 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 206,000 MILES
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?
Saturday, July 30th, 2011 AT 5:05 AM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
For what gas? Hydrocarbons? CO/CO2/O2/NOX?
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Saturday, July 30th, 2011 AT 8:48 AM
Tiny
SEASIDEMT
  • MEMBER
  • 3 POSTS
Hydrocarbons
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Monday, August 1st, 2011 AT 5:52 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try giving it a tune-up and see what happens
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Monday, August 1st, 2011 AT 5:56 PM
Tiny
SEASIDEMT
  • MEMBER
  • 3 POSTS
Thanks will do
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Monday, August 1st, 2011 AT 7:14 PM

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