
steeler
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steeler's post in 2006 Mack CV 713 12.0L AMI 370 Stumble on high idle was marked as the answer
Yours doesn't have a check engine light, just the lightning bolt and red shut down light. You can get the lightning bolt to blink any active codes for you by turning cruise off, then hold down (I think it's down?) the set/decel switch until the light starts blinking a 2 digit number...