Leaky GM transmission seal
Some customers may comment on a red fluid leak from the transmission or transfer case area. Technicians may find that the fluid is leaking from the transfer case/PTU weep hole farthest from the transmission, near the passenger side.
This TSB applies to the following vehicles:
2008-2010 Buick Enclave
2008-2009 Chevy Equinox Sport
2009-2010 Chevy Traverse
2010 Chevy Equinox
2007-2010 GMC Acadia
2010 GMC Terrain
2008-2009 Pontiac Torrent GXP
2007-2009 Suzuki XL-7
2007-2010 Saturn Outlook
2008-2009 Saturn Vue
(with 6T45/70/75 AWD/PTU automatic transmission (RPO MHC/MH4/MH6) for GM or AF33-5 AWD/PTU automatic transmission (RPO M45) for 2007-2008 Suzuki and Getrag 760/790 transfer case)
The front wheel drive intermediate (inner) shaft seal may be leaking. Due to low ambient temperatures with various runout conditions between the intermediate drive shaft and the input shaft, the seal material may not properly seal automatic transmission fluid.
Replace the front wheel drive intermediate (inner) shaft seal with a new-design seal.
NOTE: Selecting the correct replacement seal is critical due to a 2008 mid-model design update. Use the following information to determine which seal to use.
For Acadia, Enclave, Outlook and Traverse:
- For vehicles built prior to VIN Breakpoint 8J217964, use first-design seal P/N 19180998 (green).
- For vehicles built on or after VIN Breakpoint 8J217964, use the second-design seal, P/N 19206322 (green).
For Equinox, Terrain, Torrent and Vue:
- For vehicles built prior to VIN Breakpoint 86075818, use the first-design seal P/N 19180998 (green).
- For vehicles built on or after VIN Breakpoint 86075818, use the second-design seal, P/N 19206322 (green).
For Suzuki XL-7:
- For vehicles built prior to VIN Breakpoint 86115983, use the first-design seal P/N 19180998 (green).
- For vehicles built on or after VIN Breakpoint 86115983, use the second-design seal P/N 19206322 (green).
NOTE: Second-design seals are not compatible with first-design transfer cases. Installing a second-design seal in a first-design transfer case will create a transmission fluid leak due to interference with the input shaft.
Installing the replacement seal to the proper depth is critical. Use the DT-48078 Inner Drive Shaft Seal Installer with a J8092 Driver Handle to install the seal 2.8mm (0.11 in.) from the end of the input shaft.