2008 GMC Sierra rough idle

2008 GMC SIERRA
54,000 MILES • V8 • 4WD • AUTOMATIC
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MMOORE35
  • MEMBER
  • 1 POST
My truck idles rough at a stop ranges from 400 to 600 rmp dosn't die. runs fine while driving? somtimes the service traction light comes on at a stop are these problems hand and hand? I tried BG injector cleaner with realy no change.
Oct 12, 2010 at 10:59 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Try cleaning the idle air control valve and the EGR valve to include cleaning the MAF sensor with an electronic cleaner CRC and see what happens
Oct 12, 2010 at 1:10 PM
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