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Random reverse issue 10speed

Ghost5O19

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Hey all I have a 19 GT with a 10speed. Every once in a while on a cold start, I start it up and put it in drive to get it out of the garage and it’s like it’s in neutral. I give it alittle gas and will slam in. Been doing that randomly for the last 2yrs. Now after a 20min drive home from work, I stop and put it in reverse to back into my driveway and it’s doing the same thing. It acts like it’s in neutral and I give it a little gas and it really slams in reverse and goes. It sounds terrible when it happens. Only has happened twice. Car only has 28k miles on it. Never had any shifting issues while driving. Has anyone experienced this problem?
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njweatherman

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I've owned a 2020 and a 2023, and neither exhibited that behavior. You could be low in transmission fluid or it could be the valve body going.
 

ORRadtech

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My first thought was "have you ever checked the transmission fluid level?" Sounds like exactly what I would expect if the fluid was a little low.
 

Paddles

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My first thought was "have you ever checked the transmission fluid level?" Sounds like exactly what I would expect if the fluid was a little low.
You beat me to it
+1 for checking fluid
 

Ramairetransam

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check your fluid , also after you check and verify the fluid level , disconnect the battery overnight and then drive the car to learn the shift adaptations with proper fluid level .
 

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Jimmy Hall

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From your description, it sounds like you’re encountering intermittent issues with the transmission not engaging properly when shifting into drive or reverse, which can be concerning. The suggestions made by other users are quite insightful. Here’s a summary of steps you can take:

1. **Check Transmission Fluid Level:** Low transmission fluid can cause shifting issues, so it’s a good idea to start here. Ensure that your fluid is at the proper level and in good condition.

2. **Transmission Fluid Condition:** Aside from checking the fluid level, inspect the fluid's color and smell. If it appears dark or has a burnt odor, it may need to be replaced.

3. **Learning Shift Adaptations:** As suggested, after confirming the fluid level, disconnecting the battery for a period (around 30 minutes to an hour) can help the transmission relearn its shift patterns. This might improve the shifting behavior.

4. **Check for Fault Codes:** Consider having the vehicle scanned for any diagnostic trouble codes (DTCs) using an OBD-II scanner. This can reveal if there are underlying issues that need to be addressed. Personally I like to use my Youcanic Full System Scanner, as this tool is excellent for diagnosing a wide array of systems in my vehicle and can help pinpoint the trouble effectively.

5. **Valve Body Concerns:** If the problem persists after checking the fluid and adaptations, there may be an issue with the valve body or other internal transmission components that might require a professional inspection.

If you continue to experience these issues despite these checks, we recommend consulting with a certified technician who specializes in Ford transmissions for a thorough diagnosis.
 
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TSB 2101. On my 18 GT 10r80, it shifted hard into 3 and 5 and going from R to D it would snap your neck. They replaced the clutch hub ( CDF Clutch cylinder) and it's like butta, I tell you. Butta.
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