GM 15808430
Outlet Pipe, Lower

Raising the vehicle on safety stands forms the first step for changing the transmission fluid cooler hose/pipe. Start by detaching the 2 oil cooler lines from the Radiator before you disconnect the outlet pipe from any attached auxiliary cooler pipe components when such equipment exists. Begin by taking the clips off the frame rail and then unfastening the 2 transmission oil cooler lines. It is necessary to pull the plastic cap back at least two inches from the transmission quick connect fitting when you remove its retaining ring and cooler line. The retaining ring should be rotated with a bento tip screwdriver until it can be removed entirely then the ring needs disposal. Remove both cooler lines from the vehicle by first removing the e-clips from their quick connect fittings and then pulling straight out from the fittings with the retaining rings (E-clips) already removed. Raising the vehicle a second time makes it possible to connect the new transmission oil cooler line. Standalone new retaining rings (E-clips) must be installed into all quick connect fittings before use. Connect the 2 cooler lines to the Radiator while you should also install the inlet line on the Radiator and the outlet on the auxiliary cooler line. Secure the transmission oil cooler lines with proper placement of the retaining ring and a slot on the quick connect fitting followed by rotation until all three ears suit the slots. Test the free movement of the retaining rings before installing new retaining rings (E-clips) into all quick connect fittings. Make sure you obtain new caps since the cooler line should have plastic caps at both ends prior to its installation. Jacob the cooler line through the quick connect fitting until the fitting emits a click sound or provides resistance then refrain from placing the plastic cap for installation. Apply sharp backward force on the cooler line to verify its secure position before setting the plastic cap onto the fitting without touching the retaining ring. A proper seal exists when the fitting cap sits fully in place and the yellow band from the tube remains hidden inside the fitting. The plastic cap installation requires complete seating against the fitting. The retaining ring needs removal to check for bends before returning the necessary components for proper reinstallation. Fitting the cooler lines to transmission and engine lines must occur before lowering the vehicle.

Begin repealing the transmission fluid cooler hose/pipe by first removing the upper oil cooler line from the Radiator then suspending the vehicle into the air. First detach the engine protector shield when dealing with vehicles that have awd before you can handle the lower cooler line from the Radiator. A plastic cap must be pulled backward on the quick connect fitting of the transmission up to two inches before removing the retaining ring and cooler line. A bent-tip screwdriver can rotate the retaining ring so it moves out of position completely for discarding it. To detach the remaining cooler lines you must pull the cooler line straight out from the quick connect fitting while removing the retaining ring (E-clips) which connects the cooler line to the quick connect fitting. The cooler lines should be detached from their retaining clip at the Oil Pan before transporting them out of the vehicle. Installation of retaining rings should only involve new components. First place an entirely new retaining ring (E-clip) within the quick connect fitting while ensuring its proper position with all three ears penetrating the slots. Mount the cooler lines onto the vehicle but only after placing plastic caps at the end points before using the quick connect fittings. Secure the end of the cooler line into the fitting by pulling back strongly after hearing or feeling the click. Check the connection to verify the attachment. Place the plastic cap onto the fitting in a way that does not engage the retaining ring manually but ensures a proper fit with a closed gap and complete hiding of the yellow identification band inside the fitting. Proceed to check for bent parts when the plastic cap refuses proper placement. The oil cooling line installation process ends by placing cooler lines into the retaining clip at the Oil Pan and securing both lines to the Radiator with flair nuts torqued to 45 nm (33 ft. Lbs.). After lowering the vehicle, finishing the installation by securing the upper line with another flair nut using the same torque specification.

The first task to replace the transmission fluid cooler hose/pipe requires physically elevating the vehicle and using stable safety stands for support. You must disconnect the 2 oil cooler lines which run through the Radiator before handling the outlet pipe from an optional auxiliary transmission oil cooler. Start by detaching transmission oil lines from their position on both the cooler and frame rail where they are held by clips. When working with quick connect fittings on the transmission to extract their retaining ring and cooler line you should carefully pull the plastic cap beyond a two-inch distance from the fitting. Yo u can easily disassemble the retaining ring by rotating it with the help of a bent-tip screwdriver and should dispose of it afterward. Use pliers or fingers to pull out the cooler line directly from its quick connect fitting and unfasten the e-clips retaining rings until you can extract the cooler lines from both the vehicle and drop it to the floor. The installation requires vehicle elevation to put in the new transmission oil cooler line lines while keeping all factory retaining rings out of use. Fit one new e-clip into the quick connect fitting and connect both cooler lines to the Radiator system while you should also install the inlet to the Radiator and outlet to the auxiliary cooler line if needed. Secure both transmission-connected oil cooler lines by checking that the retaining ring correctly slots all of its three ears into the fitting ports. The new retaining ring (E-clip) needs to be placed into the vacant quick connect fittings after checking for free movement of the rings through their slots. The installation requires plastic caps for each end of the cooler line and immediate replacement if any damage exists. To secure the cooler line properly insert it into the quick connect fitting until either a sound or resistance can be felt and then apply strong backward force for confirmation. Ensure proper fitting placement of the plastic cap by avoiding hand pressure on the retaining ring while making sure the fitting rests completely with no space between components and hiding the yellow identification band inside. Check for bends on retaining rings before reinstallation because incorrect positioning of the plastic cap requires removing the retaining ring for proper inspection. You should install the engine or transmission cooler lines to the frame by lowering the vehicle down.

Inspect the fittings, connectors, and cooler hoses for any damage or distortion.

Install the oil cooler hoses to the clip, connect the oil cooler lines to the radiator, and ensure the cooler line end is inserted into the quick connect fitting until a click is heard or felt. Then, pull back sharply on the cooler line to confirm proper installation.

Gently pull the oil cooler pipe fittings straight out from the radiator quick connect fittings.