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Engine light comes on when reach speeds over 70.

Tiny
ANONYMOUS
  • MEMBER
  • 2005 GMC SIERRA
  • 103,000 MILES
Engine light comes on when reach speeds over 70 mph code goes off when I keep speed below 46







Monday, December 24th, 2012 AT 2:22 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes to see where problem is
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Monday, December 24th, 2012 AT 2:33 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuel pressure as well
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Monday, December 24th, 2012 AT 2:33 PM

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