2003 Chevy S-10

2003 CHEVROLET S-10
117,000 MILES • 6 CYL • 2WD • AUTOMATIC
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CHEVY66
  • MEMBER
  • 3 POSTS
Hello, my check engine light starts to flash every time I reach 70 mph or so and my truck tends to run rough at that point. As soon as I start to slow down, the service light turns off. I changed all plugs and wires. Also cap and router. Any suggestions?
Jul 17, 2010 at 6:09 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check engine light:

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.
Jul 17, 2010 at 9:51 PM
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