What causes AT transmission fluid to come out of the transmission breather at 75-85 mph?

2000 HYUNDAI ACCENT
138,000 MILES
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WALLACE42
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  • 2 POSTS
-Flushed and refilled AT Transmission with Dex/Merc
-Transmission is not overfilled
-Checked for clogged oil cooler
Jun 25, 2012 at 5:56 AM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
When you check the level does the oil look aerated at all?
Jun 25, 2012 at 5:58 AM
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WALLACE42
  • MEMBER
  • 2 POSTS
No
Jun 25, 2012 at 6:09 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Overheating of the fluids would result in that.
Jun 25, 2012 at 10:12 AM
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