What do I need to check for?

2001 CADILLAC SLS
120,000 MILES
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MOMO8210
  • MEMBER
  • 5 POSTS
sudden rough idle w/ service engine light on
Jan 25, 2012 at 11:07 AM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,407 POSTS
Start by checking for diagnostic fault codes. They will get you into the circuit or system that needs further diagnosis. Many auto parts stores will read the codes for you for free.
Jan 25, 2012 at 11:12 AM
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