MY 1999 F350 LARIAT 4X4 7

  • Tiny
  • Anonymous
  • 1999 Ford F-350
  • 292,000 miles

My 1999 f-350 lariat 4x4 7.3 has a shuddering problem when you get into overdrive and gradually accelerate. One friend said to change the filter and flush the transmission fluid so I did but it did not help the situation. Another friend stated that the truck might have had a chip on it before therefore the transmission would not shift right with out the power chip on the truck if the previous owner done some modifacations to the transmission. I also done the test of putting the truck in drive and holding the brake and the truck gradually started to shudder. I have just rebuilt the turbo also. The truck came with a turbo rebuild kit. Where do you think the shudder is coming from?

Wednesday, October 24th, 2012 AT 3:19 AM

1 Reply

  • Tiny
  • racefan966
  • Expert
  • 5,136 posts

With the miles on it I would say you are probably going to need to have the trans rebuilt. I had to have my trans done in my 95 F-150 with the E4OD in it it went from shutter to not shifting till way late and then shifting really hard.

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Wednesday, October 24th, 2012 AT 5:02 AM

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