Chevy and GMC Duramax Diesel Forum - View Single Post - Elevated idle not working
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post #1 of (permalink) Old 12-12-2019, 03:26 PM Thread Starter
Junior Member
Join Date: Oct 2019
Posts: 25
Elevated idle not working

I turned on the elevated idle a few weeks ago. My trucks been sitting for a full day and it’s 29 degrees out. Went outside and started the truck. Coolant temp was 39 degrees and outside temp 29 but no high idle kicked on. Am I missing something ? 2011 LML
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