01' GMC Sierra 2wd Rattling noise.

2001 GMC C1500
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JSHELLY186
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  • 7 POSTS
My GMC Sierra rattles underneath at low RPM and sometimes under acceleration. I've checked the heat shields and other misc. metal parts that could possibly rattle but everything appears to be ok. Has anybody had the same thing happen on theirs?? I would really like to know what it is becuase it's bugging the heck out of me. haha.
Oct 20, 2007 at 10:08 PM
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BLACKOP555
  • ✓ASE Certified Mechanic
  • 10,386 POSTS
  • ASE Certified Mechanic
lightly tap the exhaust pipes or shake them does that produce the symptom?
Oct 20, 2007 at 10:20 PM
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JSHELLY186
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  • 7 POSTS
I have tapped on the pipes and it just produces a hollow sound...no rattling. I think it could possible be from having a build up in my Cat. What do you think??
Oct 24, 2007 at 11:02 AM
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