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2003 Suburban check engine light

Tiny
DUBBER75M
  • MEMBER
  • 2003 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 132,000 MILES
When truck gets to a cruising speed of about 70 engine light flashes. It sometimes even goes into the reduce power mode which requires you to stop and then it runs fine again. It always runs good as if nothing is wrong.
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Thursday, January 20th, 2011 AT 1:24 AM

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Tiny
RASMATAZ
  • CERTIFIED MECHANIC
  • 75,999 POSTS
Check engine light on
Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis, finding out what's going on.
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Thursday, January 20th, 2011 AT 1:28 AM

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