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Chevrolet Express
Platform: GMT Van

Transmission Leak

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Old September 13th, 2019, 2:00 PM
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Default Transmission Leak
Guys, my pan gasket is not leaking but something else is. What do you think? 2011 express AWD 5.3


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Old September 13th, 2019, 7:05 PM
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the shift lever does have a seal...is that the source of the leak?
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Old September 13th, 2019, 9:22 PM
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I was gonna say shifter. If the fluid cooler lines are nearby they might be dripping down too.
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Old September 15th, 2019, 5:42 AM
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Originally Posted by tech2
the shift lever does have a seal...is that the source of the leak?
It just may be. Will the trans have to come out to replace it?
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Old September 15th, 2019, 9:22 AM
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nope. it can be done in vehicle.
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Old September 16th, 2019, 7:28 AM
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That's encouraging! What holds the shaft that goes through the seal in? I believe that needs to be out so the seal puller can be used. Right??
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