Tranny has been acting a bit weird, especially while driving down hill on a steep grade. I took it to ford and asked for it to be serviced, and the tech said it was lifetime fluid and if I were to do a drain and fill, it could do more harm than good. It’s a 2016 with 92k miles on it, and I don’t know if the tranny was ever serviced. Thoughts?
2016 trans fluid service?
- Thread starter tacoduck
- Start date
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Owners manual shows 150,000 mile service for the transmission, front/rear axle fluids, and transfer case. I am assuming you have 4WD. I have 85k on the clock and the dealer typically tries to sell me these services at my oil changes. I politely state I am following the recommended intervals in the manual. Usually shuts them up.
Speedboosted
Well-Known Member
I would advise pulling the pan, replacing the ~7 quarts and filter, then putting a drain plug in your original pan while it’s off, or buying the dorman pan which has one installed. I can assure you the fluid iniside a 6r80 is not going to last 150k without severely breaking down.
JasonH
Full Access Members
What specific issues are you observing on downgrades? I haven't heard anything bad about the six speed. By all accounts, it's a very reliable transmission.
I've heard pressure flushing can damage internal components or dislodge contaminants, but drain and fill should be fine. I changed mine around ~138K before a big towing trip. At 148,000 now. No transmission issues. It's simple, but potentially messy. Just drop the pan, left the fluid run out, and reinstall pan and refill. I didn't bother putting a pan with a plug in. The fluid lasted for 130K and I won't change it again before swapping vehicles.
I've heard pressure flushing can damage internal components or dislodge contaminants, but drain and fill should be fine. I changed mine around ~138K before a big towing trip. At 148,000 now. No transmission issues. It's simple, but potentially messy. Just drop the pan, left the fluid run out, and reinstall pan and refill. I didn't bother putting a pan with a plug in. The fluid lasted for 130K and I won't change it again before swapping vehicles.
I change my tranny fluid every 50k-70k miles. I now have 248,*** on my 1st gen and I got to 295,*** on my 1992 BMW 735i.
I also change the diff fluid every 75k as well as the front transfer case fluid.
Oil is cheap, trannys are not.
I also change the diff fluid every 75k as well as the front transfer case fluid.
Oil is cheap, trannys are not.
Link to the pan with the plug? Thanks!
mjp2
Full Access Members
It's not cheap but the convenience is worth it. Also nice having the extra fluid capacity.
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Trainmaster
Old School Member
$ 495.00 ???? Whattttt?It's not cheap but the convenience is worth it. Also nice having the extra fluid capacity.
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Free Shipping - B&M Automatic Transmission Deep Pans with qualifying orders of $109. Shop Automatic Transmission Pans at Summit Racing.www.summitracing.com
JasonH
Full Access Members
There are others with a drain bolt.
2017 FORD EXPEDITION 3.5L V6 Turbocharged Fluid Pan | RockAuto
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mjp2
Full Access Members
Yeah it's insane. Practically doubled in price in the past couple of years.
Nice find!
