Msfitoy
Well-Known Member
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- Sid
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- Mar 5, 2019
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- Location
- North Carolina
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- 2019 Ranger, 2003 MINI Cooper S, 2021 Honda CT125
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- NWO Robot Polisher
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Well, I hate to report this but Msfitoy has found it's Achilles Heal. The 10R80 has failed. With less than 1,000 miles before reaching her 100K milestone, the conditions has deteriorated to a very unreliable state that forced her to be parked until her service appointment. Which, to add insult to injury, was placed over a month ago and it's still 10 days away!!! I'm hoping there's a reasonable solution to her repair(s) which doesn't involve thousand dollar bills! Shift solenoids? Shift valve body replacement? Rebuild transmission? New transmission? Who knows. I'm just hoping to have her back to normal so we can cross that 100K mile together. She still looks brand new 
Here's my write up to hand over to the service department so they don't have to hear the disappointment in my voice:
Here's my write up to hand over to the service department so they don't have to hear the disappointment in my voice:
2019 FORD RANGER
TRANSMISSION FAILURE REPORT:
VIN:XXXXXXXXXXXXX
Transmission operation normal up till 95,000 miles, Spring 2022. Transmission currently miss-shifts in all modes, Drive, D+tow mode, S-mode auto, and S-mode manual.
TRANSMISSION FAILURE REPORT:
VIN:XXXXXXXXXXXXX
Transmission operation normal up till 95,000 miles, Spring 2022. Transmission currently miss-shifts in all modes, Drive, D+tow mode, S-mode auto, and S-mode manual.
- 1st incident: 95,000 mile. Driving away from home one day, transmission shifted from 1st to 2nd with 2 second delay and concluding with violent engagement.
- 2nd incident: This behavior was mitigated by lifting throttle in between 1-2nd. 7 quarts of old transmission fluid was extracted, new filter installed and 7 new quarts was added. Behavior did not immediately improve. After few thousand miles, the shifting improved and began operating mostly normal with slight miss shifts from 3rd -4th.
- 3rd incident: While accelerating to highway speeds, the transmission attempted to shift from 9th to 10th but began hunting between 7th and 10th causing an error code P0766 (wrench icon on), “shift solenoid “D” performance or stuck off”. I pulled off the highway and the transmission was stuck in 5th and there was evidence of transmission fluid expelled from unknown point. The fluid sprayed back and covered the drive shaft, frame, rear diff and muffler assembly. After shutting off and waiting a few minutes to restart, the transmission was operating as before and was driven home slowly. Limp mode did not come on.
- 4th incident: Fluid was checked and was still within specification. After cleaning the fluid from under body, the leak has not occurred since but the shifting behavior continued to worsen. Shifts from 1st to 2nd had changed from a jolt to a shudder.
- 5th incident: Shifts from 3rd to 4th developed a long delay and drops to 2nd before either re-engaging 4th with either a complete miss (lift throttle to re-engage), slip (rev goes up but engages) or a violent jolt/slam engagement. This causes the wrench icon to come on with instructions to “see manual”. The transmission began to stay in 4th and not shift up or down. After placing in park, noise can be heard from solenoids shifting into 1st. It also will become stuck in 7th even coming to a stop.
The transmission's current state has deteriorated to a point where it is not possible to drive the vehicle for more than a few miles before becoming stuck in high gear. Shutting off the vehicle can sometimes correct the gear position but not always.
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