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My 2000 ford excursion starts vibrating at 40-45 mph; even…

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my 2000 ford excursion starts...
my 2000 ford excursion starts vibrating at 40-45 mph; even with cruise control engaged. if I let off of the accelerator and coast, the vibration stops until I accelerate again. I was told this may be a defective torque converter or possibly an electrical issue with the transmission shift solenoids. The vehicle has 4 brand new tires that were professionally mounted and balanced this week.
Submitted: 2 years ago.Category: Ford
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Answered in 13 minutes by:
2/13/2016
Ford Mechanic: roy, import/domestic specialest replied 2 years ago
roy
roy, import/domestic specialest
Category: Ford
Satisfied Customers: 7,928
Experience: ASE master tech for 40 years
Verified

good afternoon my name is ***** ***** I will assist

yes, it does sound like the torque converter is giving you whats called a shutter. it happens when the clutches inside slip and causes this condition. try running again and press the OD button and see if there is no vibration. that will help confirm the issue.

Roy

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Customer reply replied 2 years ago
I did press the O/D button while driving and had no change in the driving condition.
Ford Mechanic: roy, import/domestic specialest replied 2 years ago

are there any codes in the system???

Roy

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Ford Mechanic: roy, import/domestic specialest replied 2 years ago

I see you requested a new pro. shame we just started.

good luck

Roy

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Ford Mechanic: CargoVroom, Mechanic replied 2 years ago
CargoVroom
CargoVroom, Mechanic
Category: Ford
Satisfied Customers: 286
Experience: 25 years troubleshooting and repair experience
Verified

I would suggest before you go off and tear into the torque convertor/transmission, check the rear driveline. Chances are its a simple matter of a universal joint on the way out. They are not a lifetime unit by any means, and, if original are non-greasable

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