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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

1991 trans leak.

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Old Apr 28, 2021 | 12:06 PM
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1991 trans leak.

Put a soft parts kit in the trans about 1000 miles ago with a new torque converter. Drove fine for a while then puked fluid out of the front seal so I replaced it and still leaks. Any ideas.
Cooler is not clogged but the line flow is a little over a qt in 30 secs. Don’t know if that’s normal. Shifts and runs fine just leaks when warm.
also has a code for tq converter slippage.
 
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Old Apr 28, 2021 | 12:10 PM
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What model truck and what transmission: AOD, C6, E4OD?
 
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Old Apr 28, 2021 | 12:18 PM
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1991 150 4.9 e4od
 
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Old Apr 28, 2021 | 12:20 PM
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My Ford service manual states the flow should be at least 1/2 quart in 30 seconds for an E4OD. Based on your statement of "also has a code for tq converter slippage." that implies you have an E4OD. That is not a good sign for a new converter. If it is slipping perhaps it is overheating the fluid and causing the seal to open up again. Did you install the newer style converter hub seal?
 
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Old Apr 28, 2021 | 01:01 PM
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Yes it has the newer Viton seal. A couple weeks ago I went to put it in gear and it took a minute to engage. But it shifts fine
 
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Old Apr 28, 2021 | 01:39 PM
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Pulled 3 codes.
332 egr( have deleted)
452 speed sensor ( been a code long before this)
628 excessive converter slippage
 
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