2017 6R140 Transmission issues
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7th Gear
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2017 6R140 Transmission issues
I have a tuned '17 F250 with 60k miles that will slip in 3rd gear and occasionally slip out of 3rd and hit 1st gear. The transmission also hesitates going into reverse. The transmission fluid on the dipstick is brown and smells burnt, has anyone experienced this and had a solution rather than a full rebuild? Possibly a valve body or solenoid issue causing my direct clutches to slip? Thanks for the help
Lead Driver
Joined: Nov 2005
Posts: 8,440
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If it's burnt as described, you'd have to flush it to get all the bad fluid out, and that would wash away what's left of the clutch linings.
Brown and burnt smelling fluid = transmission is toast.
Brown and burnt smelling fluid = transmission is toast.
Fleet Mechanic
Joined: May 2018
Posts: 1,765
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What tune are you running? The tune could be contributing to your transmission's early demise. I'd give that a hard look before rebuilding a transmission and having a crappy tune roast it again.
I tend to agree with the others, if your fluid is burnt, start driving like a grandma and don't change the fluid otherwise it may completely stop working altogether. There are some snake oil additives that may help limp it along but it will only slightly delay the inevitable.
I tend to agree with the others, if your fluid is burnt, start driving like a grandma and don't change the fluid otherwise it may completely stop working altogether. There are some snake oil additives that may help limp it along but it will only slightly delay the inevitable.
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7th Gear
Joined: Jul 2022
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What tune are you running? The tune could be contributing to your transmission's early demise. I'd give that a hard look before rebuilding a transmission and having a crappy tune roast it again.
I tend to agree with the others, if your fluid is burnt, start driving like a grandma and don't change the fluid otherwise it may completely stop working altogether. There are some snake oil additives that may help limp it along but it will only slightly delay the inevitable.
I tend to agree with the others, if your fluid is burnt, start driving like a grandma and don't change the fluid otherwise it may completely stop working altogether. There are some snake oil additives that may help limp it along but it will only slightly delay the inevitable.
I run a 75hp tune as well as a tranny tune. After this started happening I did switch it back to the stock tune.
Hotshot
Joined: Oct 2015
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From: Wyoming
I think you've identified the root cause of the problem.
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