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Sputtering (?) on acceleration?

BB68

Outer Banks
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Bryan
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Tough to decribe the issue with words but I will do my best. As the title says, I've noticed a sputtering of sorts as I accelerate. Almost feels like an aggressive gear shift if it was a manual transmission. Similar to the feeling of driving a go-kart. No warning lights or anything like that. Anyone have anything similar? Worried this could be a major problem. (2021 Sport Outer Banks)
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DWG

Badlands
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David
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How many miles on your BS and at what speeds or shift points do you notice the sputtering. Could be the Torque Converter. I had to replace mine on my 2019 Edge at about 50'000 miles.

Torque converter shudder is a brief, repetitive vibration—frequently described as driving over small rumble strips—that typically occurs at steady cruising speeds between 30 and 50 mph when the transmission lock-up clutch engages. It is primarily caused by degraded or moisture-contaminated transmission fluid failing to provide proper friction characteristics.

What It Feels Like and How to Diagnose It

  • The "Rumble Strip" Sensation: A quick, rhythmic shudder through the floorboards or seat right when the vehicle shifts into high gear or overdrive.
  • The Throttle Test: To rule out an engine misfire (which can feel similar), press the gas pedal down firmly to force a downshift or unlock the converter. If the vibration immediately stops or goes away, it is a torque converter clutch issue. If it gets worse and triggers a flashing check engine light, it is an engine misfire.
  • Tachometer Fluctuation: You may notice the engine RPM needle slightly dancing or cycling up and down by 50–100 RPM during steady cruising.
 
 







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