Transmission Leak with photos - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 11-25-2011, 11:08 AM   eBay Motors  #1 (permalink)
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Question Transmission Leak with photos

Im trying to figure out where my tranny is leaking. I dont see any signs from the lines, although they are stock. its not coming from the front of the transmmision, its dry. Theres fluid everywhere! lol....Any ideas? Ill take more pictures if you need another angle. Thanks in advanced for any help. If you need better pictures just let me know, dont be afraid to tell me these suck lol.
Attached Images
File Type: jpg Trans 1.jpg (32.5 KB, 182 views)
File Type: jpg Trans 2.jpg (37.0 KB, 178 views)
File Type: jpg Trans 3.jpg (39.7 KB, 176 views)
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2002 2500HD Ext. Cab Duramax 4x4, Quadzilla Stealth 2, straight piped, allison deep pan w/ transynd, AEM bruteforce Intake, Rancho 5000 shocks, Connex CB radio, 285/75/16 courser CT's. Injectors replaced 135,000 miles (dealer). Currently 210,000 miles.
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Old 11-25-2011, 11:38 AM   eBay Motors  #2 (permalink)
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Just some more info, i did replace the pan gasket when i changed the tranny fluid awhile back, about 30,000 miles ago. Could it be a crappy pan gasket? Is their pressure inside the transmission pan?
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2002 2500HD Ext. Cab Duramax 4x4, Quadzilla Stealth 2, straight piped, allison deep pan w/ transynd, AEM bruteforce Intake, Rancho 5000 shocks, Connex CB radio, 285/75/16 courser CT's. Injectors replaced 135,000 miles (dealer). Currently 210,000 miles.
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Old 11-25-2011, 12:22 PM   eBay Motors  #3 (permalink)
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it sorta looks like the pan.
are the quick disconnect fittings leaking where the lines go into the transmission?
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Old 11-25-2011, 12:53 PM   eBay Motors  #4 (permalink)
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also check to make sure the dipstick is seated properly into the pan
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Old 11-25-2011, 12:57 PM   eBay Motors  #5 (permalink)
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Nope its not leaking from the the lines that go into the transmission. Im thinking it might be the pan gasket. theres fluid all around the gasket front to back! I might try a new gasket and possibly upgrade the pan to a Deep pan. Any suggestions on a brand of gasket?
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File Type: jpg leak2.JPG (34.2 KB, 153 views)
File Type: jpeg leak1234.JPEG (14.3 KB, 151 views)
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2002 2500HD Ext. Cab Duramax 4x4, Quadzilla Stealth 2, straight piped, allison deep pan w/ transynd, AEM bruteforce Intake, Rancho 5000 shocks, Connex CB radio, 285/75/16 courser CT's. Injectors replaced 135,000 miles (dealer). Currently 210,000 miles.
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Old 11-25-2011, 12:59 PM   eBay Motors  #6 (permalink)
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Quote:
Originally Posted by DURAMAX_02 View Post
Nope its not leaking from the the lines that go into the transmission. Im thinking it might be the pan gasket. theres fluid all around the gasket front to back! I might try a new gasket and possibly upgrade the pan to a Deep pan. Any suggestions on a brand of gasket?
from those pictures it DEF looks like the pan is leaking lol
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Names Yezin im 24 and yes i bought my truck myself
2006 CCSB 2500Hd Lt2 LLY DMax, Efi live 150hp Idaho Rob , 5in Straight Pipe 6in Black Tip:rockin, Diamond Eye Dp, Tie rod sleeves, Edge Insight cts, SDP Egr Delete Pipe, Fprv shimmed, Pcv Reroute, All On mod, Blue led's in gauges cluster, Clarion Nx700, 8000k HID's highs/lows/fogs, Rbp Locking Fuel Door, Recons with Led Reverse lights
Name is Sharks06LLY on Duramaxdiesels.com

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Old 11-25-2011, 01:04 PM   eBay Motors  #7 (permalink)
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okay. So is their any special gaskets or are they all the same from a local parts store?
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2002 2500HD Ext. Cab Duramax 4x4, Quadzilla Stealth 2, straight piped, allison deep pan w/ transynd, AEM bruteforce Intake, Rancho 5000 shocks, Connex CB radio, 285/75/16 courser CT's. Injectors replaced 135,000 miles (dealer). Currently 210,000 miles.
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Old 11-25-2011, 01:20 PM   eBay Motors  #8 (permalink)
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Get a acdelco gasket from the dealer.

Is that by chance a ATP gasket?
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Old 11-25-2011, 01:36 PM   eBay Motors  #9 (permalink)
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i cant remember what brand the gasket is. Thanks for all the input!
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2002 2500HD Ext. Cab Duramax 4x4, Quadzilla Stealth 2, straight piped, allison deep pan w/ transynd, AEM bruteforce Intake, Rancho 5000 shocks, Connex CB radio, 285/75/16 courser CT's. Injectors replaced 135,000 miles (dealer). Currently 210,000 miles.
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Old 11-25-2011, 01:48 PM   eBay Motors  #10 (permalink)
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i think im gonna go with merchant auto. they have a package that comes with a deep pan, both filters and 3 gallon of Transynd for $239. And the gasket for $39. So $300 shipped to my door. I think thats a pretty fair price.
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2002 2500HD Ext. Cab Duramax 4x4, Quadzilla Stealth 2, straight piped, allison deep pan w/ transynd, AEM bruteforce Intake, Rancho 5000 shocks, Connex CB radio, 285/75/16 courser CT's. Injectors replaced 135,000 miles (dealer). Currently 210,000 miles.
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