[jakes40]

I don't know if I can explaining this right. But here go's! 2006 Durango, 5.7l, 195,000 miles
When the torque converter is locked up and you slow down or come to a hill between 40-60 (the slower the worse it is) an you try to apply power slowly it starts to shake and stumble. Until the trans kicks down or you get the RPMs up above 2000. At first I thought it could be plugs or a bad coil pack. ( I am changing plugs and checking the coil packs tomorrow or Tuesday anyways hey have 100000 on them). But it only happens when the torque converter is locked up could it be one of the trans. speed sensors? I'm not sure how they interact if they go bad. And I have no check engine light and it has 195,000 miles with no major problems up till now.

Thank you for the help.

 

[ddm2k]

I don't know if I can explaining this right. But here go's! 2006 Durango, 5.7l, 195,000 miles
When the torque converter is locked up and you slow down or come to a hill between 40-60 (the slower the worse it is) an you try to apply power slowly it starts to shake and stumble. Until the trans kicks down or you get the RPMs up above 2000. At first I thought it could be plugs or a bad coil pack. ( I am changing plugs and checking the coil packs tomorrow or Tuesday anyways hey have 100000 on them). But it only happens when the torque converter is locked up could it be one of the trans. speed sensors? I'm not sure how they interact if they go bad. And I have no check engine light and it has 195,000 miles with no major problems up till now.

Thank you for the help.

Excellent observation with detail. The moments when you are lugging up a hill without downshifting are the times when your timing advance is the greatest.

Do you have an OBD2 you can hook up like an ELM327 and monitor live for misfires? May not be enough to display CEL but may be pending code there.

Bad speed sensor would give you ABS/Brake light illuminated steady or trans limp mode for the rest of the drive. Lockup clutches tend to fail gracefully not one day you wake up and this happens.

Since it only happens in the highest gear I’d say it’s possible but lockup clutch tend to show their wear by RPM’s bouncing under light load, on flat roads, about 50 MPH as they “decide” whether to lock or not.


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