2003 Chevy Silverado 2003 Duramax

2003 CHEVROLET SILVERADO
105,000 MILES • V8 • 4WD • AUTOMATIC
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TRUXRME
  • MEMBER
  • 3 POSTS
As truck is getting older I notice the smoke coming out of muffler is putting out more exhaust, is this an injector problem or or some other sensor that needs replaced?
Dec 13, 2008 at 6:35 AM
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BRIAN 1
  • ✓Experienced Mechanic
  • 1,030 POSTS
is it more black smoke than normal? excessive soot. have it scanned for any dtc's and check the injector balance rates. had tons of trouble with injectors and injection pumps going bad on the 6.6L very common.
Dec 13, 2008 at 11:37 AM
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TRUXRME
  • MEMBER
  • 3 POSTS
Thanks Brian, I have made an appointment with the local Chevy dealer I bought it from and they seem to think injectors may need replaced. I will let you know what happens. Chevrolet extended the injector to 7 years I believe.
Dec 15, 2008 at 12:03 PM
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