Buick Regal Owners & Service Manuals
Buick Regal 2018-2024 Service Manual / Transmission / Transmission Cooling System / Repair Instructions / Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (AF50-8)

Buick Regal: Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (AF50-8)

Removal Procedure

1.

Transmission Cooling System

Place a drain pan under the vehicle.

2. Transmission Fluid Cooler Pipe Connector Cap(1)@Radiator - Unclip.

3. Transmission Fluid Cooler Outlet Pipe(2)@Quick Connect Fitting - Disconnect.

4. Raise and support the vehicle.

5. Charge Air Cooler Inlet Air Tube - Remove.

6.

Transmission Cooling System

Transmission Fluid Cooler Pipe Nut(2) - Remove.

7. Transmission Fluid Cooler Inlet and Outlet Pipe(1)@Transmission - Disconnect.

8.

Transmission Cooling System

Unclip the retainer with a screwdriver. (3) [2x].

9. Transmission Fluid Cooler Inlet and Outlet Pipe(1) - Pull out.

10.

Transmission Cooling System

Transmission Fluid Cooler Pipe Connector Cap(1)@Radiator - Unclip.

11. Transmission Fluid Cooler Outlet Pipe(2)@Quick Connect Fitting - Disconnect.

12. Route the transmission fluid cooler inlet and outlet pipe out of the vehicle.

Installation Procedure

1. Route the transmission fluid cooler inlet and outlet pipe into proper position.

2.

Transmission Cooling System

Transmission Fluid Cooler Outlet Pipe(2)@Quick Connect Fitting - Connect.

3. Transmission Fluid Cooler Pipe Connector Cap(1)@Radiator - Clip.

4.

Transmission Cooling System

Transmission Fluid Cooler Inlet and Outlet Pipe(1) - Install.

5. Transmission Fluid Cooler Inlet and Outlet Pipe Retainer(2) - Close[2x].

6.

Transmission Cooling System

Transmission Fluid Cooler Inlet and Outlet Pipe(1)@Transmission - Connect.

CAUTION: Fastener Caution.

7. Transmission Fluid Cooler Pipe Nut(2) - Install and tighten10N.m (89 lb in).

8. Charge Air Cooler Inlet Air Tube - Install.

9. Lower the vehicle.

10.

Transmission Cooling System

Transmission Fluid Cooler Outlet Pipe(2)@Quick Connect Fitting - Connect.

11. Transmission Fluid Cooler Pipe Connector Cap(1)@Radiator - Clip.

12. Remove the drain pan.

13. Check the transmission fluid level.

TRANSMISSION FLUID COOLER PIPE FITTING SEAL REPLACEMENT

Special Tools

  • DT - 41239-1A Cooler Line Seal Installer
  • DT - 45201 Cooler Line Seal Remover

For equivalent regional tools, refer to Special Tools.

Removal Procedure

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.

2. Place a drain pan or suitable container under the vehicle.

3.

Transmission Cooling System

Remove the transmission oil cooler line assembly nut from the transmission.

4. Disconnect the transmission oil cooler lines from the vehicle.

5.

Transmission Cooling System

NOTE: Ensure that the J 45201 is fully seated into the transmission seal bore.

Insert the collet piece (2) of the DT - 45201 Cooler Line Seal Remover into the cooler line seal.

6. Insert the forcing screw piece (1) of the DT - 45201 Cooler Line Seal Remover into the collet (2).

7. Tighten the forcing screw (1) until snug.

8.

Transmission Cooling System

Thread the collar piece (1) of the DT - 45201 Cooler Line Seal Remover onto the collet (3) until snug.

9.

Transmission Cooling System

Turn the collar clockwise in order to remove the cooler line seal (87).

10. Discard the seal (87).

11. Clean the case bores for the cooler line seals.

Installation Procedure

1. Insert a new transmission cooler line seal into the case bore.

2.

Transmission Cooling System

Remove the nub from the DT - 41239-1A Cooler Line Seal Installer.

3.

Transmission Cooling System

Install the nub of the DT - 41239-1A Cooler Line Seal Installer on the transmission cooler line seal.

4. Tap the new transmission cooler line seal into the case bore.

5.

Transmission Cooling System

Install the transmission oil cooler line assembly to the transmission.

CAUTION: Refer to Fastener Caution.

6. Install the transmission oil cooler line assembly nut and tighten to 9 N.m (80 lb in).

7. Lower the vehicle.

8. Check and adjust transmission fluid level as necessary.

9. Start the engine and check for leaks.

SPECIAL TOOLS AND EQUIPMENT

SPECIAL TOOLS

DT-41239 - 1A

J-41239 - 1A

Cooler Line Seal Installer

Transmission Cooling System

DT - 45096

J - 45096

Transmission Cooler Flusher

Transmission Cooling System

DT - 45096- 30

J - 45096-30

Transmission Cooler Flush Adapter

Transmission Cooling System

DT - 45096- 50

J - 45096-50

Transmission Cooler Flush Adapter

Transmission Cooling System

DT-45201

J-45201

Cooler Line Seal Remover

Transmission Cooling System

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