Old 04-28-2010, 02:01 PM
  #1  
dafat40
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Join Date: Mar 2005
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Default TH 400 w/ Coan Trans Break blows ATF out of vent

Anyone got an idea why ATF blows out the vent tube on top of my TH 400 on a pass? Ran it up on the break and through the gears on stands but no leaks or fluid from vent. Possitive about coming out of vent, put a temp bottle on it and captured 2 or 3 ounces each pass. Has TCI deep pan, run Pennzoil ATF at normal level on dip stick. Even tried to drop 1 quart ATF. Still came out of vent. Trans shifts fine.

Car does wheelies, runs low 9's. Blown 427 SBC 900 hp.

Too much pressure? Too much heat? Too much ATF? Need baffle in pan?

Dave
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