LML shudder

pavetim

Member
Jan 10, 2011
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Anybody hear of the lml and a converter shudder? I noticed it yesterday on my 2015 dually. Towing my 15,000 lbs in the highway at 70 when it downshifts it shudders and jerks really bad. Seems to go away when it hits like a certain rpm or power level. But yeah it jerks the whole truck
 

pavetim

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Jan 10, 2011
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Truck has 60k on it, i bought it at 52k. I changed trans fluid and filter with transynd when i bought it. I ryn ridgerunner heavy tow for boat. Its a 2015 dually, crew cab, 8 ft box. What else you need? I do have efilive too
 

Mike L.

Got Sheep?
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Aug 12, 2006
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Data log converter clutch and see what the slip RPM is before you start throwing money at it. If the trans is stock, you probably have clutch damage in the Alli.
 

pavetim

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Jan 10, 2011
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Man i sure hope not, didn't plan in spending 5k on a truck just out of warranty. I will log that next time i tow, ill see if there are any codes too
 

pavetim

Member
Jan 10, 2011
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Well no trans codes. Ok i can scan and see if TC is slipping, how can i see if its the clutches in the trans?
 

2004LB7

Well-known member
Dec 15, 2010
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Use your efi live to log the transmission parameters. If you can't tell from that post up the log and we will take a look
 

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