fan works sometimes. Truck overheating
#16
Over 200F???
Fan wouldn't come on until coolant temp is over 200s. I can't recall the exact number.
Try to turn on the AC or defogger to see if the fan come on.
#17
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With the stock gage it gets about half way between the center hash mark 200 and the third line. Think I need to get a real mechanical gage for it. Just weird because I haul my 10k dump trailer over the same inclines all summer temp never goes over the 200 mark. New water pump 15k ago I even changed the thermostat to a new stant when I put the new clutch in.
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I was thinking the same thing I had problems with the headlights when they put the plow on last year. Had to desensitize the ecm if I went from high beam to low and back to high the lights would kick off like there was an overload on the system I had to turn the lights off at the switch and back on then they would come back on. The flash was done by Chrysler
#20
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Put an Ultragauge on your truck. You'll be able to read the exact coolant temp and a whole bunch of other parameters. Change out your thermostat. You shouldn't get that hot. Put in a cummins stat. 220 is too warm.
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