Fluid Leak At Transfer Case Weep Hole Or Betwen Transfer Case And Transmission - keywords ATF AWD O-ring repeat seal

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Customer may comment on a fluid leak from the automatic transmission or transfer case area. Technicians may find fluid leaking from between the transmission and transfer case or from the transfer case weep hole closest to the transmission.

First thoroughly clean the area and use fluid dye to isolate the leak.

For a Model 790 transfer case and the leak is isolated from the weep hole, remove the transfer case and replace the left transfer case input shaft seal item #1 and the transfer case o-ring seal item #2 as identified in SI document #1778684 using published instructions and tools.

For a Model 790 transfer case and the leak is isolated to the area between the transmission case and transfer case it will only be necessary to replace the transfer case o-ring seal item #2 as identified in SI document #1778684 using published instructions and tools.

For a Model 760 transfer case and the leak is isolated from the weep hole, remove the transfer case and replace the left transfer case input shaft seal item #3 and the transfer case o-ring seal item #4 as identified in SI document #1956409 using published instructions and tools.

For a Model 760 transfer case and the leak is isolated to the area between the transmission case and transfer case it will only be necessary to replace the transfer case o-ring seal item #4 as identified in SI document #1956409 using published instructions and tools.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.