Coolant Leak from Radiator on Ford F-350 Super Duty

Problem Description and Possible Solution

A coolant leak from the radiator can be caused by a defective thermostat bypass. This can cause pressure spikes in the cooling system, which leads to radiator failure. The thermostat assembly and radiator should be replaced.

Problem Data
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Average mileage: 71,215 (36,200–130,000)
Engines affected: 6.0L V8 Diesel Turbo, 6.2L V8, 6.4L V8 Diesel Turbo, 6.7L V8 Diesel Turbo
7 model years affected: 2004, 2008, 2009, 2010, more2011, 2012, 2013
35 people reported this problem
Viewing 1 - 20 of 22 problem details
Radiator leaking coolant from driver's side. unable to keep fluids at cool level on reservoir.
Radiator leaking at only 54k miles! The Ford dealership said it is not covered under warranty even though they don't know what caused it and it seems to be a recurring problem with this model. Ford apparently has issued a TSB for the 6.4L with same problem extending that warranty to 5/100 but not for the 6.7L. Why not? Same issues! Very disappointed in my last couple of Ford trucks. I have a hard time paying close to $70,000 for a vehicle and having to replace the radiator at only 54k miles. I have bought many Ford trucks over the last 30+ years but this could be the last.
WAS TOLD DURING A REGULAR OIL AND FUEL FILTER CHANGE THAT I HAD A LEAK IN MY RADIATOR AND IT WOULD BE &1600.00 TO REPLACE IT . ASKED WHERE THE LEAK WAS AND WAS TOLD IN A SEAM AND THAT WAS A COMMON PROBLEM. I SAID IF IT A COMMON PROBLEM WHY NO RECALL AND SERVICE MANAGER SAID THAT IT WAS NOT A SAFETY ISSUE. NATURALLY I CAME UN-GLUED AND HE SAID HE WOULD CHECK WITH FORD TO SEE IF THEY COULD HELP OUT SOME--- WHICH I TOLD HIM THEY OUGHT TO REPLACE AT CLOSE TO NOTHING. HE ASKED IF I HAD EXTENDED SERVICE WARRANTY AND I TOLD HIM THAT A 2.5 YEAR OLD TRUCK SHOULD NOT NEED ONE ---- BUT I HAD BEEN THINKING ABOUT GETTING ONE BECAUSE OF PROBLEMS I HAVE HEARD ABOUT WITH THE TURBO GOING OUT AROUND 50,000 MILES. I'M SCHEDULED TO HAVE IT REPLACED THURSDAY AND THEY SHOULD KNOW SOMETHING BY THEN --- IF FORD WILL STEP UP AND DO THE RIGHT THING
Could not keep coolant in engine while pressurized, so I drove with the cap loose till I could get it to Ford. They replaced the Radiator and coolant. Then my EGR valve went. Not covered by my extended warranty, so they wanted $995.00 to replace, I purchased online for $167 motorcraft part. Put in myself. Stilll, would not run right. Now the Diesel Particulate Filter and sensor are bad. 82,000 miles. Chevrolet here I come, or Dodge. Ford Sucks.
First leak at 75,000 Miles now again at 122,000 miles not covered under 200,000 mile warranty. Replaced first radiator at no cost to me minimal help with second radiator. Ford motor company aware of this problem but will not recall.
1600.00 to replace leaking side core of radiator. Should have bought a Chevy , this truck is low quality.
Noticed small pool of A/F on drivers side. Took into Ford dealership said rad needs to be replaced @ $2200.00??? Seriously, you buy a $60K truck made out of JUNK. Ford knows there's a problem and Too Expensive to recall.
Have coolant leak on driver side of truck. Haven't had fixed yet.
Radiator failed along seam. Not covered on warranty yet was categorized as "diesel engine problem".
Noticed a slight drip circle on pavement so when I took it into ford for an oil change they told me it would be about 2 grand to fix. Of course this happened right after warenty expired. A mechanic friend said its from using a plastic to aluminum sleeve of sort which has to great an an expansion rate difference. That's the best I can explain it anyway. Either way my bet it's a result of saving weight and cost with plastic or something.
This truck is on its third radiator, replace at 60 thousand miles . everything else seems to be fine Dwayne
replaced front cover to stop coolant from getting in crankcase at 92000 miles had already been in shop on numerous time. At less than 105000 miles differential went out not covered under warranty .At lest than 140000 miles replaced front cover hipressure fuel pump and radiator. lest than 5000 miles later had to replace complete engine turbo included Truck has been in and out of shop since about 20,000 miles
6.7 diesel radiator leak
Have a 2012 F350 6.7L and at about 80,000 noticed a drip on the floor took awhile to find where is was coming from finally found it drivers side bottom corner of radiator where the plastic and aluminum come together to form the connection to complete the radiator assembly. Was very upset when told that it was not a warrantable item, when I asked how many failures my local dealership see's without missing a beat the service manager says we replace one a week. WOW..............
Radiator leaks at valve
actually a 6.4 but that option was not on screen
now on 8th radiator
One failure was my fault
first one was my labor and next two radiators were warrantied none lasted over 13,000 miles next three I had to replace finally purchased an oreily radiator lasted a little longer but is leaking ,all leak same place driver side seam , yes the thermostat has been replaced
failed radiator, this is the second one I've had to replace
Taken in for scheduled service. Service technician opened hood and stated that he smelled coolant and reported that the reservoir was empty. It was as if he expected to find that problem. Diagnosis revealed a seam leak on driver's side. Quoted $1800 for repair. Have since learned that this is a near universal problem. Will schedule repair/replacement soon.
Radiator just started leaking at the bottom of the tank.
Radiator had to be replaced at 93k miles due to failure in the top drivers side section of the radiator.