2015 Transit 3.2L OVERHEATING and Coolant Loss - Ford Transit USA Forum
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post #1 of 11 (permalink) Old 08-01-2016, 10:30:AM Thread Starter
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2015 Transit 3.2L OVERHEATING and Coolant Loss

My 2015 Transit 350 3.2L with 42,000 miles, was overheating the other day and was a gallon low on antifreeze. so we filled it back up and I couldn't find any leaks anywhere and its not going into the motor or blowing out the tail pipe. so I brought it into the Dealership the following day and they said they ran a pressure test and looked for leaks and couldn't find any problems with it. I have been driving it the past week and over a 300 mile trip it has taken a 1/2 gallon of Coolant, but its still is running fine and I cant find any leaks. The cap is tight and the system has pressure. I was wondering if anybody else is having this problem or does anybody have a solution for this problem?
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post #2 of 11 (permalink) Old 08-01-2016, 11:36:AM
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They sell dye you can use to trace coolant leaks. Plenty of how-to's on youtube.
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post #3 of 11 (permalink) Old 08-02-2016, 10:15:PM
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Wow... that's quite a bit of leakage.

You might also want to check the heater core/floor area to see if it's getting wet.

Do you smell coolant at all? I've found I can often smell a very small leak before I can actually locate it visually. But that amount of fluid loss is not really small. If it's not turning into steam you'd think there'd be a small puddle collect on the ground when you stop right after a good run. Have you tried putting news paper or similar under the van after parking it?

Please keep us posted on what you find. I sure hope it's not a head gasket leak or similar.

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post #4 of 11 (permalink) Old 08-04-2016, 12:59:AM
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Someone on here posted about a cracked fitting on the heater core. Almost from new. So if they pressure test your system do you think they pressure tested it with the heater core valve open? Just curious..

If it was closed it might have indicated no issues, if there was a leak further up.

Keep on them. That's unacceptable loss of coolant.

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post #5 of 11 (permalink) Old 11-07-2016, 07:31:PM
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http://ford.oemdtc.com/2436/overheat...it-3-2l-diesel

Same thing is happening to mine... Check out the link, maybe the EGR cooler?
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post #6 of 11 (permalink) Old 11-07-2016, 07:51:PM
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My 3.2 has also been consuming coolant at 30k miles. It is showing up in the engine oil analysis as high potassium and sodium. Going in for warranty repair/replacement tomorrow and will post what the results are.
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post #7 of 11 (permalink) Old 11-08-2016, 12:25:AM
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Originally Posted by rondo View Post
My 3.2 has also been consuming coolant at 30k miles. It is showing up in the engine oil analysis as high potassium and sodium. Going in for warranty repair/replacement tomorrow and will post what the results are.
My 2010 F350 did this also. Mine was the EGR cooler.

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post #8 of 11 (permalink) Old 11-08-2016, 01:23:AM
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Is this only a problem with the 3.2 engine? Has anyone had this issue with the Ecoboost engine as well?
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post #9 of 11 (permalink) Old 11-09-2016, 01:09:PM
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Orton can add this to his evidence list of how going with a gas engine shortened his list of possible problems. So yes, Deadwood, this is only a problem with the 3.2 --> no EGR on the Ecoboost engines. It is, in fact, the EGR cooler leaking internally. It is recirculating exhaust gas with coolant in it back into the combustion chamber. On the plus side, the driveshaft coupler is badly cracked so that's getting replaced too.
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post #10 of 11 (permalink) Old 11-14-2016, 10:42:PM
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The funny(?) thing is my 2005 F250 had the same problem 1 week later (but 150k more miles.,,)
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