2005 Gmc Sierra Engine Light Comes On Reach Speeds Over 70 Mph Code Off Keep

2005 GMC SIERRA
103,000 MILES
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ANONYMOUS
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engine light comes on when reach speeds over 70 mph code goes off when i keep speed below 46







Dec 24, 2012 at 2:22 PM
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HMAC300
  • CAR REPAIR CONTRIBUTOR
  • 48,601 POSTS
scan for codes to see where problem is
Dec 24, 2012 at 2:33 PM
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HMAC300
  • CAR REPAIR CONTRIBUTOR
  • 48,601 POSTS
check fuel pressure as well
Dec 24, 2012 at 2:33 PM
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