A10 fill plug impossible to remove, help plz

[luca1290]

But if someone who has checked their fluid level hot & knows it is full were to check it cold after setting overnight & let us know what the cold level is would help stop some from getting burned on the exhaust!

It's impossible to get an accurate reading after leaving it overnight.
The disptick will be all coverered in AFT way after the first mark.

You need at least to make it cold but with the engine running according to the posted procedure, if you want to make it "cold".
Or just buy some heat shield gloves.

Oh, and I managed to get that plug loose :-).

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[Lbj]

This may help some

 

[Robottrainer]

In the service manual they show fishing a long extension down to the plug near the fire wall and then using a ratchet to loosen the plug. You wont see anything on the stick when its cold.

 

[Cobra Jet]

Just an FYI refresh for those wanting to check their 10R80 fluid levels. This comes from Page 1, Post 1 of the main 10R80 FAQ thread.


FACT 4 (LOW FLUID & DIPSTICK info):
M6G Members with 10R80’s have found that their 10R80 was low on fluid from the factory. If you suspect your shifting issues may be due to low fluid level, have your Ford Service Center check the fluid (or you can DIY at home with car safely jacked up or on a lift). Here’s 2 low trans fluid threads:
https://www.mustang6g.com/forums/threads/2018-10r80-low-on-transmission-fluid.132066/#post-2733064

https://www.mustang6g.com/forums/threads/a10-owners-check-your-oil-level.116410/

2 threads on checking 10R80 fluid levels:
https://www.mustang6g.com/forums/threads/10r80-fluid-check.137537/#post-2827033

This thread discusses the (2) very different 10R80 dipsticks - thanks to @leonrudi and @speedup for their findings!):
https://www.mustang6g.com/forums/threads/a10-fill-plug-impossible-to-remove-help-plz.141548/

 

[wynand32]

I'll toss my 2022 GT (bought in September 2022) into the mix as one whose transmission was low on the transmission fluid and now drives so much better with the proper level. It really is remarkable that this is still happening YEARS later. You'd think dealers would have complained to Ford by now, except I suppose they get paid for the warranty service of checking and filling.

 

[GTP]

I went in from the top. Back passenger corner of the engine compartment downward . I had to use about 2 1/2 feet worth of extensions, a ½” drive six point Flex socket, a universal adapter on top of that, and it probably took 70 or 80 foot pounds of torque to get that thing broken loose. And it let loose with a bang.

Added 1 quart, it was below B on dipstick.

note, I did the dipstick removal with the car on a lift, but had to go in from above. Fluid addition and checking was done from beneath. Used a siphon hose....very, very messy.

I agree with all the above. At least 2 feet of 1/2" extensions, 6-point 19mm socket, U-joint on the socket, breaker bar at the top, counter-clockwise to unscrew, and expect a pop/crack sound. A helper can hold the heavy stackup from above while you guide the socket onto the fill cap.

I talked to a very experienced Ford transmission specialist at the best dealership in my area.

1. At least 20 minutes of driving is required to warm up the trans.
2. Use long-handle bent nose pliers from below to dip the dipstick and get a reading. Keeps your hand away from the exhaust.
3. The engine must be running when checking the level. No fluid will splash out of the fill port.
4. Proper level is between 2.5 and 4.

 

[GTP]

Came across the photos I took, and posting them here.

Access from above - entry point

Guiding the 19mm 6pt socket and U-joint onto the filler cap. Note the view is slightly from the front looking to the back of the car.

 

[GTP]

Dipstick level, trans is cold, and engine is off.
This is the WRONG way to check final ATF level, but it may serve you as a convenient reference point.

Dipstick level after adding 1/2 quart (due to second trans cooler mod), somewhat warmed up, and with engine running. Level = 3.
This is the correct method, and correct level.

Pliers used for dipstick to prevent hand burn.

 

[GTP]

One other thing. I suspect that the main reason that the trans has to be checked warm is that then the Tstat opens up, allows ATF to enter the cooler, and thus the level appears to drop.

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