FirstFord
Well-known member
- First Name
- Jeff
- Joined
- May 14, 2022
- Threads
- 65
- Messages
- 771
- Reaction score
- 675
- Location
- South Central Missouri
- Vehicles
- 2022 F-150 Lariat SuperCab 502A, 4x4 3.5 EcoBoost
- Thread starter
- #1
For what it's worth.....
I took my truck to the dealer to have the Max Tow axle shafts replaced as per the recall. Since it was there - and had just shy of 30,000 miles, I decided to have the transmission fluid exchange performed (I tow a fair amount, off and on).
Fortunately, I could watch the process through a window, and was able to speak with the tech afterwards. Replacing the axle shafts was (to me) surprisingly quick and straight forward. Regarding the transmission, this is my report:
- I don't know the statistical level of complaints against the 10R80, but there are plenty of them on the forum. I guess I am lucky, because I have suffered none of the maladies, failures or complaints reported (yet).
- NOT towing, my transmission ran (I think) a little on the cool side - typically between 195 and 208.
- The process of the "fluid exchange" (as per discussion with the service tech afterwards) was a two-part process: 1) vacuum the fluid out of the trans pan, and replace it. 2) With the engine running, vacuum fluid out while simultaneously (coordinated) replacing the fluid, in an effort to address the fluid in the torque converter.
- Unfortunately, the tech burned the hell out of his arm on the exhaust pipe during this process. I told him that I had read that people use welding gloves to perform this task, and he acknowledged that that was the usual process, but he thought he could sneak by it. WRONG! I felt bad for the guy....
- On the drive home, the trans temp was pretty well planted at 208 degrees.
- I had no complaints of the trans before the service, but after the service, it shifts melted butter smooth! I'm very pleased! (I'm curious how things will feel when I tow next time.)
- Interestingly (VERY interestingly!) the Service Consultant thought that the dealership's $100 labor rate for the transmission fluid exchange was too high, and reduced it to $75. Yoohoo!


I took my truck to the dealer to have the Max Tow axle shafts replaced as per the recall. Since it was there - and had just shy of 30,000 miles, I decided to have the transmission fluid exchange performed (I tow a fair amount, off and on).
Fortunately, I could watch the process through a window, and was able to speak with the tech afterwards. Replacing the axle shafts was (to me) surprisingly quick and straight forward. Regarding the transmission, this is my report:
- I don't know the statistical level of complaints against the 10R80, but there are plenty of them on the forum. I guess I am lucky, because I have suffered none of the maladies, failures or complaints reported (yet).
- NOT towing, my transmission ran (I think) a little on the cool side - typically between 195 and 208.
- The process of the "fluid exchange" (as per discussion with the service tech afterwards) was a two-part process: 1) vacuum the fluid out of the trans pan, and replace it. 2) With the engine running, vacuum fluid out while simultaneously (coordinated) replacing the fluid, in an effort to address the fluid in the torque converter.
- Unfortunately, the tech burned the hell out of his arm on the exhaust pipe during this process. I told him that I had read that people use welding gloves to perform this task, and he acknowledged that that was the usual process, but he thought he could sneak by it. WRONG! I felt bad for the guy....
- On the drive home, the trans temp was pretty well planted at 208 degrees.
- I had no complaints of the trans before the service, but after the service, it shifts melted butter smooth! I'm very pleased! (I'm curious how things will feel when I tow next time.)
- Interestingly (VERY interestingly!) the Service Consultant thought that the dealership's $100 labor rate for the transmission fluid exchange was too high, and reduced it to $75. Yoohoo!


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