Warm up idle
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the idle should jump to about a thousand if its coldish out, then jump to 1250 and stay until you bump the gas, or it hits 140 degrees. it will continue to idle up until it hits 140 degrees, (if thats what you set the warm up setting to). How many seconds do you have it set up to wait to high idle? I set mine at 30 seconds in the winter, 15 in the summer. might outta wait longer but i ain't to sure on that. If it just jumps around outta random without the throttle bein touched i'd first check the data connection plug from the chip to the truck, then if it still does it i'm not to sure. If the truck never overheats on you, and seems to get up to temp in a fair amount of time then your thermostat should still be good.
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hunt4beer
5.9 Liter CR Dodge Cummins 03-07
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11-15-2014 09:06 AM