Transmission Leak - at Weep hole between Engine Oil Pan and Transmission Converter Housing. Add Black Light Dye. (New Converter seal) - keywords 07 08 6t70 6t75 axle converter engine fluid gasket hole

This PI was superceded to advise not to replace gasket or torque converter. Please discard PIP4423.

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

The vehicle may have a concern of an oil leak at the transmission converter housing or transmission case to housing gasket or rear lower engine oil pan bolts.

Install black light dye in transmission and run vehicle until dye is visible with a black light. Carefully inspect with the light to check axle seals to make sure a seal leak isn’t running down the case and ending up on the case to housing split line.

Correct any axle seal leaks using appropriate SI procedures.

Inspect Converter housing to oil pan weep hole and the two lower rear engine oil pan bolts with black light.

If either location shows leakage with dye the source is most likely the torque converter hub seal.

Follow SI procedures for the torque converter hub seal replacement.

Once transmission is removed from vehicle, inspect with black light to assure the leak is coming from the seal.

Order new seal from the Warranty Parts Center.

Do not replace the case to housing gasket or torque converter for this repair as warranty parts center returns have not shown any issues with these parts.

Parts Information

IMPORTANT NOTE WHEN PRINTING THIS FORM:

If the form prints out on two pages, make certain you fax BOTH pages so that the WPC receives all the needed information. Missing information will delay or prevent the part from being shipped.

Parts Request Form - Warranty Parts Center

To: Warranty Parts Center

e-mail: warrantypartscenterUSA@gm.com

or WPC Fax: 248-371-0192

Attn: Jeanette Dunn

Part Being Requested: Converter Seal WPC # #441

Dealer BAC (U.S.) / Dealer Code (Canada):

Dealer Name:

Dealer Address:

Dealer Contact Person:

Dealer Phone Number:

Repair Order Number:

Vehicle VIN:

Important: If you do not receive the part within 2 business days after e-mailing or faxing your part request to the Warranty Parts Center, please call Customer Assistance at 248-371-9901/9902.

IMPORTANT NOTE WHEN PRINTING THIS FORM:: If the form prints out on two pages, make certain you fax BOTH pages so that the WPC receives all the needed information. Missing information will delay or prevent the part from being shipped.

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.