I have a 2018 Freightliner Cascadia with a DD-15 and a freightliner 12 speed auto. When I enable the opti-idle and set the interior temperature in the bunk to 72 degrees, the truck will crank and idle with the a/c blowing until the csb temp reaches 72. Lately, it has been cooling off during one cycle and when i cranks again, the heater is blowing. The temp in my bunk today was 124. I killed the engine and turned the main power off and on, then restarted the opti-idle. It blower cold. I left for a while, came back and my bunk temp was 123 and hot. Any ideas on what is happening?
2018 Cascadia Opti-idle problem
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by impact5988, Aug 2, 2017.
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