3rd Gen Engine and Drivetrain -> 2007 and up 6.7 liter Engine and Drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

Check engine light on,no codes

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Old Aug 10, 2012 | 09:52 AM
  #1  
jnlarson's Avatar
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From: Eastern MT
Check engine light on,no codes

I have a 2007 C&C ,runs erratically,CEL on,lightening bolt flashing on instrument panel.
NO codes show in odometer, only blanks, then "done"

Whats next?
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Old Aug 10, 2012 | 06:35 PM
  #2  
mr. ed's Avatar
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Loose battery connections and/or bad battery(s) can cause strange things to happen. Get the batteries load tested and clean/tighten battery terminals. These procedures seemed to always work for me when strange, unexplained things happen with the warning lights.
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