Transmission saga - Diesel Forum - TheDieselStop.com
6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

 
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post #1 of 4 (permalink) Old 08-08-2019, 08:31 PM Thread Starter
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Transmission saga

Long story short, transmission rebuilt last fall by shop, likely cause of trans failure was water in fluid. So shop replaced radiator thinking water was coming from there. Now more water in fluid again, this time lots, fluid is pink and milky, last time was just trace water in fluid. So where else can water be coming from? Transmission dipstick, but where else?. Old radiator was never pressure tested to confirm leak. Now I'm having Transmission shop test current radiator for leak, and check everything else, but at the same time I'm going to check things too. I really don't want to rebuild this transmission again!

2007 F-250 6.0 liter 4x4 crew cab short bed. 155,000 miles, bullet proofed at 75,000 miles including EGR delete, new oil cooler, ARP head studs, Ford head gasket, 8 new injectors, FICM rebuild and Atlas 40 by FICMrepair.com. Running Rotella ELC with coolant by-pass filter since 50,000 miles and Oil by-pass filter since 75,000 miles.
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post #2 of 4 (permalink) Old 08-09-2019, 05:36 PM
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The only place the trans touches water is in the radiator. It could come in through the dipstick or the vent on top of the trans. Both of those are pretty high off the ground, you would need to drive through some pretty deep water to have it come in either of those spots.

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post #3 of 4 (permalink) Old 08-10-2019, 06:28 AM Thread Starter
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Never been driven in water. Radiator was replaced when trans was rebuilt. The likelyhood of 2 radiators leaking into coolant seems improbable.

2007 F-250 6.0 liter 4x4 crew cab short bed. 155,000 miles, bullet proofed at 75,000 miles including EGR delete, new oil cooler, ARP head studs, Ford head gasket, 8 new injectors, FICM rebuild and Atlas 40 by FICMrepair.com. Running Rotella ELC with coolant by-pass filter since 50,000 miles and Oil by-pass filter since 75,000 miles.
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post #4 of 4 (permalink) Old 08-10-2019, 06:58 AM
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However Mr. Kovalsky's post is 100% accurate.

The only other way water could enter is a hole in the case or someone is putting water in it. Also inspect the transmission dipstick tube. I have seen one or two over the years that had rusted out severely leaving large holes and one was actually in two pieces.


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