TSB's

No-Go Caddy

Some owners of 2007-2009 Cadillac SRX, 2007-2010 STS or 2008-2010 CTS equipped with all-wheel-drive (MX7) and 6L45 (MYA) or 6L50 (MYB) automatic transmission may comment that the vehicle has no forward or reverse gear at launch or has a grinding noise when forward or reverse gear is selected.

Upon further investigation, the technician may find that the transmission output shaft splines are stripped or damaged.

A revised transmission output shaft with an O-ring is now available. The transmission output shaft and the transfer case input shaft should also be replaced. Typically, there are no damaged parts in either the transmission or transfer case.

Important: After repairs, when installing the transfer case to the transmission, be sure to grease the transmission output shaft splines with high temperature wheel bearing grease, P/N 1051344 (Canadian P/N 993037).

Also, verify that the two locating (alignment) pins are pressed into the transfer case, as they may stick in the transmission during transfer case removal. If these pins are not in the proper location in the transfer case, proper alignment of the transfer case to the transmission is not maintained and damage may result.

PARTS INFORMATION

P/N .................... DESCRIPTION

24251229............shaft assembly, transmission output (MYB/MX7)

96043341............shaft assembly, transmission output (MYA)

24251228............seal, A/Trans case (O-ring)

19256369............shaft, transfer case input (CTS)

19256370............shaft, transfer case input (STS, SRX)

24225543............seal, A/Trans fluid pump

24238913............seal kit, A/Trans service

24238925............plate kit, control solenoid valve filter

24231525............gasket – transfer case

1051344..............wheel bearing grease (US)

993037................wheel bearing grease (Canada)

Loss of forward/reverse gear or grinding noise may be caused by damaged splines on the transmission output shaft. A revised shaft with O-ring is now available.
<p>Loss of forward/reverse gear or grinding noise may be caused by damaged splines on the transmission output shaft. A revised shaft with O-ring is now available.</p>

Note the location of the alignment pins. Make sure the pins are installed to the transfer case prior to installation of the transfer case to the transmission.
<p>Note the location of the alignment pins. Make sure the pins are installed to the transfer case prior to installation of the transfer case to the transmission.</p>

Post a comment
 

Comments (0)

 

Post a Comment

Submit
Subscribe Today

Subscribe to Auto Service Professional

Sign up for a FREE subscription to Auto Service Professional magazine

Subscribe