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Old 10-15-2007, 11:55 AM
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th350 leak in reverse

Hi, I have a problem I can't figure out. My th350 will dump tranny fluid out of the pan, but only when the car is in reverse. This is not a normal leak, it pours out, and this only happens in reverse, in forward gears there's no leak whatsoever. Does anybody know what would cause this? Any help is appreciated.

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Old 10-15-2007, 10:20 PM
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Quote:
Originally Posted by brandon624
Hi, I have a problem I can't figure out. My th350 will dump tranny fluid out of the pan, but only when the car is in reverse. This is not a normal leak, it pours out, and this only happens in reverse, in forward gears there's no leak whatsoever. Does anybody know what would cause this? Any help is appreciated.

Does it pour out the rear of the pan / back of the trans case?

Front of the trans case? Passenger side?


I suspect you may have a cracked case or something loose...putting the trans into reverse should not cause a trans pan to leak
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Old 10-16-2007, 12:07 AM
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It dumps out of the rear of the pan, passenger side, but only in reverse. If there was a crack wouldn't it always leak?
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Old 10-16-2007, 06:23 AM
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Originally Posted by brandon624
It dumps out of the rear of the pan, passenger side, but only in reverse. If there was a crack wouldn't it always leak?

Not if the crack is located at the pressure area used for reverse

If there was a problem with the pan , it would leak full time since the oil level is there full time.

Your leak appears pressure related to reverse as you post the symptoms.
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Old 10-16-2007, 02:15 PM
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Thanks for the advice. I'll take a closer look at the tranny itself.
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Old 10-16-2007, 03:58 PM
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it may be craked the low reverse piston is back there in the rear of the case will it leak in Manual 1 also this will apply the low reverse clutch when it is in manual 1 any other time only the low roller is holding
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Old 10-17-2007, 01:56 PM
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Thanks for the tip, I'll see what it does in first. My troubles started when I installed a B&m shift kit. Since then I've reinstalled it twice, once with a different valve body, but the leak hasn't stopped.
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