• Tiny
  • Ian Nordman
  • 1987 Ford F-250
  • 160,000 miles

Hello I have a 1987 f250 diesel with c6 3 speed transmission. It has developed a shudder when the outside temperature is above 90 degrees. When temps are cool, it doesn't seem to shudder. I recently changed transmission fluid and drained torque converter, filter, and cleaned oil cooler with no improvement. The band has been properly adjusted as well. Shudder begins when accelerating from a stop up to 35 mph then seems to go away. It also occurs in reverse gear. This is also a non-lockup converter. Any help would be greatly appreciated thanks.

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have the same problem?
Tuesday, June 12th, 2012 AT 3:55 AM

1 Reply

  • Tiny
  • mhpautos
  • Expert
  • 30,637 posts

Time to get the line pressures check, this can be done by a trans specialist, this may show a low pressure problem which I would be suspecting at this stage.

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Tuesday, June 12th, 2012 AT 10:15 AM

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