GM 19129770
Outlet Tube

Starting the replacement of the rear transmission fluid cooler pipe requires the removal of the engine Oil Filter combined with both the left hand (LH) front wheel and the lh front splash shield retainers and finally removing the lh front splash shield. The transmission oil cooler quick connect tool (J 44827) should be used to disconnect front toc lines so they can be separated from rear toc lines. The next step requires removal of the rear transmission fluid cooler line to transmission retainer bolt then separation of the rear toc lines from their connection to the transmission along with discarding o-rings. Apply this technique when removing toc lines through the retainer bracket bolt position to reach both the retainer bracket rivets while handling each line separately. Remove the retainer bracket and toc lines from the vehicle by drilling out the bracket rivets. To install the system start by securing the toc lines to their position while installing the retainer bracket for later riveting to the toc lines. You should install the toc retainer bracket bolt and torque it to 25 nm (18 ft. Lbs.). New o-rings should be installed on the rear toc lines before connecting them to the transmission followed by the rear toc line to transmission retainer bolt which needs tightening to 25 nm (18 ft. Lbs.). After joining the front toc lines to the rear toc lines you must reinstall the lh front splash shield together with its retainers and front wheel and engine Oil Filter.

Vehicle service begins with vehicle elevation for support followed by front air deflector replacement removal and positioning a catch pan beneath the vehicle. First separate the external oil cooler from the engine Oil Cooler Hose/pipe before disconnecting its clip from both the engine and Fan Shroud and finally removing the hose/pipe from all components. Discard the seals at this time. To install, begin by adding new seals onto the engine Oil Cooler Hose/pipe before you attach the external hose/pipe to the vehicle and check the quick connect fitting to verify proper attachment. After attaching the external hose/pipe to the engine you must install the clips onto the engine and Fan Shroud before checking the quick connect fitting operation. After fitting the engine Oil Cooler Hose/pipes to the external oil cooler you should remove the oil drain pan then reinstall the front air deflector replacement before refilling the engine oil while inspecting for any leaks.

Install new O-rings to the rear TOC lines and connect them to the transmission.

Connect the engine oil cooler hose/pipe clip to the engine and the fan shroud, verifying the quick connect fitting engagement.

Reposition the radiator and install the bolts securing the radiator support brackets, tightening them to 9 N.m (80 lb in), and then install the bolts securing the TOC line to the cooling fan shroud, tightening them to 6.5 N.m (58 lb in).

Connect the front TOC line to the rear TOC line and to the radiator.

Take off the LH front wheel and the LH front splash shield retainers, followed by the LH front splash shield.

Raise and support the vehicle.