2002 Ford F350 Noise and vibration during overdrive lockup

Tiny
JSMITHV10
  • MEMBER
  • 2002 FORD F-350
Transmission problem
2002 Ford F350 Four Wheel Drive Automatic 56000 miles

Drop down box does not allow for V10 motor. When I get the superduty up to about 45-50mph and the overdrive/torque convertor reaches lockup I can hear a vibration/groaning noise plus vibration through the floor boards. The noise does not go away unless I stop accellerating and then reply the gas. This solves the problem until the next time the torque convertor reaches lockup again. I did take my truck to the dealer and they said the problem was my transmission solenoid which they replaced and problem still exists. (After paying the $900.00 for the repair they admitted that they never did duplicate the problem and told me that it would be fixed with the solenoid due to a code that was in the computer. Before I took it in and after "repair" when I drove it and duplicated the problem several times there never was a engine light tripped on my dash.) Now they are telling me they want $400.00 to open up my transfer case and look around. ANY HELP would be appreciatted.
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Monday, February 4th, 2008 AT 9:29 PM

1 Reply

Tiny
REYNOLDT
  • MEMBER
  • 12 POSTS
My personal opinion is that ford supplies very weak torque convertors on every automatic transmission they have sold since 1990. At 56 K, if a transmission filter and oil change does not fix the issue, I would suspect the torque convertor, I have replaced 6 on different vehicles from 1990 - 2004. There may not be a visible code in the ECM but a scan can show failure of torque convertor lock-up in OD. When it shakes down into OD you will feel a shudder, then a "skip" then lockup.
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Saturday, February 23rd, 2008 AT 8:26 PM

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