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Originally Posted by Soundguy Remember.. some trucks have idle up solenoids, as well as idle variance built in. also.. trucks with reefers have a seperate engine in the back for the compressor that kicks on automatically to maintain temp. At a distance.. a reefer running might sound like a truck idleing..
soundguy |
I am aware of these. I am told the idle up on a semi is for heat in the winter. If thats the case it means its not a factor in the summer.