Duramax Lifetime Supporter
Join Date: Oct 2014
Location: Weatherford Texas on a 25 acre horse farm
What do you mean "turned on the elevated idle?
Normally you don't have to do anything- if its cold enough it will ramp up the idle speed after a small period of time.
Later in the post you mentioned "high idle"". Two different things- high idle is an option, elevated idle is on all dmax's except maybe the first ones.
2019 Chevrolet 4500HD CC 4X4 Flatbed
2018 Chevrolet 1500 CC 4X4 High Country 6.2 liter
2019 Chevrolet 3500HD CC 4X4 Flatbed--SOLD
2011 Peterbilt 337 hauler with 360HP 8.3 Cummins--SOLD
1957 GMC 1 ton flatbed with 22K original miles.
3 different Kubotas
2003 Chevrolet 2500HD CC: 2011 Chevrolet 3500HD CC 4X4 and 2013 3500HD ex. cab 4X4-- all sold.