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Powerboost Cavitating Noise on Cold Start

Snakebitten

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Remember that the Powerboost has an electric transmission fluid pump... So-o-o, if the suction to that pump is lower in the pan and it is programmed to run prior to engine start, that could be the fix. Just speculating...
Actually that electric auxiliary transmission pump is shared with the non Powerboost and was in the 10r80 long before the amazing Powerboost was created. That pump is necessary for any truck with auto stop/start, so Ford/GM designed it into the 10-speed from the start.

But I bet you are right and the software is VERY different between the Powerboost and the non-Powerboost. :)
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JEB

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Actually going in for a vibration under load in higher gears and a rattle in my headliner but plan to request this as well.
I’m pretty sure the headliner is not software-related. But, the vibration might be and again, it might be the PCM software. Two birds with one stone:

June 10, 2022 MANUFACTURER COMMUNICATION NUMBER: TSB 22-2224
Components: POWER TRAIN

NHTSA ID Number: 10214124
Manufacturer Communication Number: TSB 22-2224
Summary
Some 2021-2022 F-150 vehicles equipped with a 2.7L EcoBoost, 3.5L EcoBoost, or 3.5L PowerBoost and built on or before 12-May-2022 may exhibit a vibration/shudder felt during light throttle tip in at highway speeds (8,9,10 gear) and no diagnostics trouble codes (DTCs) present. This may be due to various software parameters in the powertrain control module (PCM). To correct the condition, follow the Service Procedure to reprogram the PCM.
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1985ns

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I just wonder what it is in that software update that remedies what seems like a fluid starved pump. I’m not saying there’s no f’in fix for it via software manipulation, my small brain just can’t understand how that works.
The dealer told me it changes the programming that the fluid circulation pump doesn’t kick on right away when it’s extremely cold (which is what caused the noise) and now allows the engine and Trans to first warm a bit thus making the fluid more viscous before the pump kicks in. There’s so many various cooling lines in this truck it’s insane.

not sure how true that it but it’s a logical explanation…
 

NAM

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this my transmission fluid level is it right ?

any one know the right level for transmission fluid?

Ford F-150 Powerboost Cavitating Noise on Cold Start 9EC26890-FA13-436B-8655-1240860F23D2
 

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Snakebitten

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this my transmission fluid level is it right ?

any one know the right level for transmission fluid?

9EC26890-FA13-436B-8655-1240860F23D2.jpeg
Depends.
What was the transmission temperature when you pulled the dipstick?
 

Snakebitten

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Well done!
According to the service manual.

Ford F-150 Powerboost Cavitating Noise on Cold Start Screenshot_20230303_085833_OneDrive
 

Snakebitten

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If you want to be on the high side of the recommendation, you would add fluid. I don't know how much fluid = a full mark to mark, but I bet it's more than you might think since the tranny holds ~3 gallons!

I bet 1 quart would NOT be an overfill
 

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NAM

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If you want to be on the high side of the recommendation, you would add fluid. I don't know how much fluid = a full mark to mark, but I bet it's more than you might think since the tranny holds ~3 gallons!

I bet 1 quart would NOT be an overfill
thank you so much i will stay on my fluid level because i don’t have problem with my transmission thats ok ?
 

Snakebitten

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I don't think there's anything wrong with you leaving it at the level it is. Afterall, you followed the procedure perfectly and it IS within specifications.

So did you burn your hand or wrist? 😂
 

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thank you so much i will stay on my fluid level because i don’t have problem with my transmission thats ok ?
I don't think there's anything wrong with you leaving it at the level it is. Afterall, you followed the procedure perfectly and it IS within specifications.

So did you burn your hand or wrist? 😂
i will leave it like that because see the pic🤣🤣

Ford F-150 Powerboost Cavitating Noise on Cold Start image
 

Snakebitten

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You're a stud. That's all I can say.
You have earned 150,000 trouble free miles from your 10r80
 
 




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