'21 10r80 underfilled from factory?

[d0nkey]

Came around to drain & refill fluid and filter change. I started by draining, measuring total, then refilling the same. I brought the vehicle to 208F and checked the stick. barely a spec on the dip stick. I added 3/4 of a quart, let the vehicle run for 10 more min and was finally between 5 and 6.

Under filled or expected fluid loss?

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[TheGoatman]

Little chance it was underfilled…

 

[fordtruckman2003]

Little chance it was underfilled…

Several posts in this forum would disagree. Usually these are owners with weird transmission issues.

 

[TheGoatman]

Several posts in this forum would disagree. Usually these are owners with weird transmission issues.

I know and talked to ford mechanics and others when looking into this as well as forums posts. My opinion is the fill procedure is too difficult to get an accurate consistent reading

 

[Sojourner]

Good reminder that I need to check my F-150. But I can tell you my 2023 Ranger (same 10R80) came underfilled by more than a quart.

 

[jhelrey]

Mine was low 1.5 Qs.

 

[FaaWrenchBndr]

I know and talked to ford mechanics and others when looking into this as well as forums posts. My opinion is the fill procedure is too difficult to get an accurate consistent reading

It’s not that complicated.
Holy crap I’ve taught 20 year-old kids how to remove aircraft wings, how to replace engines & how to remove landing gear. Checking the fluid level on a transmission ain’t shit. And I ain’t no genius.

 

[TheGoatman]

It’s not that complicated.

To do it correctly, it is. There’s multiple numbers on the dip stick. Are you sure you’re looking at the right one? You’re burning the shit out of your forearms. Did you cycle though all the gears? Are u sure its the right temp? Are you on level ground? Is the truck level? Did you put a 2” level on the front?

 

[Gros Ventre]

I had some weird noises from my transmission as the first winter came on. Secifically when temperatures got down to 15ºF or lower it would give a low level grinding noise. Took it in to the dealer and they checked it out. Turned out it was low on oil fill. Why the temperature thing? well once the transmission was cold soaked the oil would shrink to below the pump suction in the transmission and air would be sucked in. They followed the procedure for fill, added about a quart, and the problem went away. Then did an oil analysis check and no apparent damage.

 

[FaaWrenchBndr]

To do it correctly, it is. There’s multiple numbers on the dip stick. Are you sure you’re looking at the right one? You’re burning the shit out of your forearms. Did you cycle though all the gears? Are u sure its the right temp? Are you on level ground? Is the truck level? Did you put a 2” level on the front?

And all that isn’t very complicated at all. One just really needs to be able to pay attention and to be able to read a service manual.

Yes, there are multiple numbers on the dipstick, it’s on the service manual.

Yes, I’m sure I know the right range, it’s in the service manual.

They have been making Kevlar sleeves for about 40 years, they’re pretty cheap too, may I suggest Amazon or even a welding supply shop.

Yes, the manual calls out that, cycle through the gears, run the fluid through all the clutches as well as valve body.

Service manual calls out the proper transmission temperature range.

Level ground is easy, it’s also easy to put a level on the frame and ensure it’s level.

I don’t have a 2 inch leveling kit on mine, but once again, leveling the truck isn’t rocket science, place a level on the frame.

Any more test questions? What fluid to use? Torque specs? Reading comprehension? An IQ test?

 

[TheGoatman]

And all that isn’t very complicated at all. One just really needs to be able to pay attention and to be able to read a service manual.

Yes, there are multiple numbers on the dipstick, it’s on the service manual.

Yes, I’m sure I know the right range, it’s in the service manual.

They have been making Kevlar sleeves for about 40 years, they’re pretty cheap too, may I suggest Amazon or even a welding supply shop.

Yes, the manual calls out that, cycle through the gears, run the fluid through all the clutches as well as valve body.

Service manual calls out the proper transmission temperature range.

Level ground is easy, it’s also easy to put a level on the frame and ensure it’s level.

I don’t have a 2 inch leveling kit on mine, but once again, leveling the truck isn’t rocket science, place a level on the frame.

Any more test questions? What fluid to use? Torque specs? Reading comprehension? An IQ test?

I guess you’re just pretty awesome…

unfortunately, most people don’t get it correct. Then the forum is filled with BS data.

 

[Old Hat]

Checking the level on these transmissions sounds like a major PITA to me, and I've done plenty of work on cars. I'm not attempting it. If I was having issues, (I'm not) I might try adding a bit of fluid and see if it helps. Or is that a major PITA on these too?

 

[jhelrey]

All you need is a welding glove.

 

[FaaWrenchBndr]

I guess you’re just pretty awesome…

unfortunately, most people don’t get it correct. Then the forum is filled with BS data.

all I’m saying is people need to read the damn service manual. That just a tiny amount of common sense can get the job done fairly easily.

 

[Gros Ventre]

Here's what I don't get: If the transmission has been properly filled, run thru all of the gears and otherwise ensured the bubbles have been chased out, why the specific, onerous procedure? We know the thermal expansion coefficient of the Ford ULV fluid. If the transmission has been properly vented, we know what a cold or hot level reading will be. Not an issue that it has to be running when checked. So why the big deal?

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