Fluid Leak From The Extension Housing Seal On 4T64E - keywords axle engineering fluid halfshaft investigate leak MN7 M15 seal transmission wb
| Subject: | Fluid Leak From The Extension Housing Seal On 4T64E |
| Models: | 2008-2009 Impala |
| 2008 Buick Lacrosse/Allure |
| Equipped With a 4T65E Transmission RPO MN7 or M15 |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Transmission fluid coming out of the transmission extension housing seal on the 4T65E transmission.
Recommendation/Instructions:
Until October 17, 2008, GM Powertrain Division is requesting that additional parts be replaced and returned for analysis of extension housing seal leaks. If a fluid leak is diagnosed as coming from the transmission extension housing seal (use fluid dye if necessary), please replace the extension housing and seal together, without removing the seal from the housing. Use Labor Operation for Housing and/or Housing to Case O-Ring Seal or Gasket, Extension - Replace. After October 17, 2008, please disregard this request and repair the fluid leak condition in the normal manner.
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.
