What to do

30

Asked by Feb 16, 2016 at 12:43 PM about the 2014 Ford F-350 Super Duty King Ranch Crew Cab LB DRW 4WD

Question type: Maintenance & Repair

My brother has a 2014 Ford F-350 power
stroke and every time he starts it it will run
fine but as soon as you start driving it
overheats, we have replaced the whole
coolant system and flushed the ports in the
block, what should I do

5 Answers

4,905

replace the radiator? probably less then 200 if plugged, you might do a flow test with a spot thermometer to see if the radiator is plugged...take the temperature at the entrance and exit...then buy a new radiator~ also perhaps there is an electric fan with a thermal on switch that isn't comin' on~ you may check that...FLOW TEST...then NEW radiator~ that's my diagnosis~ 17 bucks from Amazon...cats love to chase the lazer too~ http://www.amazon.com/Etekcity-Lasergrip-774-Non-contact- Thermometer/dp/B00837ZGRY/ref=sr_1_2? ie=UTF8&qid=1455644847&sr=8- 2&keywords=spot+thermal+gun

4,905

if old now, have seen it with my own two eyes...the fins on the waterpump did not exist...only rust colored splines~ so yes, a flow test would tell ya~

4,905

dang PANIC, fill with water...get home and forget that you put WATER in there and a couple of days later RUST...and perhaps everything works okay for a time but things like thermostat stops and gets stuck open or closed....hope fersure you put a brand new 180 (yes lower) degree t-stat in there~ and did NOT use water...at any point in history!~

4,905

"the Whole coolant system" is what gets me....like then there is nothing left to replace...perhaps an electric fan is necessary to make sure it keeps it's cool...betcha didn't think about it's function as it relates to coolant temperature~ it's like...dude...show's over!~

86,815

Check for the proper fan rotation on the rig, it should be pulling air through the radiator. Also check for proper fan clutch operation, when cold it should have a fair amount of drag if you try turn it by hand.

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