Transmission Oil Cooler Line Replacement 7.2L And AT545

Removal Procedure

1. Remove the bolts, the washers, the nuts, and the clips securing the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

2. Remove the nuts securing the oil cooler lines to the radiator and the transmission.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the radiator with a lint-free material.

3. Remove the nuts securing the oil cooler lines to the oil filter adapter.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the oil filter adapter with a lint-free material.

4. Remove the oil cooler lines from the vehicle.

Installation Procedure

1. Install the oil cooler lines to the vehicle.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the nuts in order to secure the oil cooler lines to the oil filter adapter.

Tighten
Tighten the nuts securing the oil cooler lines to the oil filter adapter to 30 N·m (22 lb ft).

3. Install the nuts in order to secure the oil cooler lines to the radiator and the transmission.

Tighten
Tighten the nuts securing the oil cooler lines to the transmission and the radiator to 25 N·m (18 lb ft).

4. Remove the plugs from the following parts:

•	The ends of the oil cooler lines

•	The radiator openings

•	The oil filter adapter

5. Install the bolts, the washers, the nuts, and the clips in order to secure the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

6. With the engine running, check the oil cooler lines and the connections for leaks.

Transmission Oil Cooler Line Replacement 7.2L MT643/653 Filter On Right

Removal Procedure

1. Remove the bolts, the washers, the nuts, and the clips that secure the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

2. Remove the nuts securing the oil cooler lines to the radiator and the transmission.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the radiator with a lint-free material.

3. Remove the nuts securing the oil cooler lines to the oil filter adapter.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the oil filter adapter with a lint-free material.

4. Remove the oil cooler lines from the vehicle.

Installation Procedure

1. Install the oil cooler lines to the vehicle.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the nuts in order to secure the oil cooler lines to the oil filter adapter.

Tighten
Tighten the nuts securing the oil cooler lines to the oil filter adapter to 30 N·m (22 lb ft).

3. Install the nuts in order to secure the oil cooler lines to the radiator and the transmission.

Tighten
Tighten the nuts securing the oil cooler lines to the transmission and the radiator to 25 N·m (18 lb ft).

4. Remove the plugs from the following parts:

•	The ends of the oil cooler lines

•	The radiator openings

•	The oil filter adapter

5. Install the bolts, the washers, the nuts, and the clips in order to secure the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

6. With the engine running, check the oil cooler lines and the connections for leaks.

Transmission Oil Cooler Line Replacement 7.2L And AT545

Removal Procedure

1. Remove the bolts, the washers, the nuts, and the clips that secure the oil cooler lines to:

•	The engine

•	The transmission

•	The frame rail brackets

2. Remove the nuts securing the oil cooler lines to the radiator and the transmission.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the radiator with a lint-free material.

3. Remove the nuts securing the oil cooler lines to the oil filter adapter.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the oil filter adapter with a lint-free material.

4. Remove the oil cooler lines from the vehicle.

Installation Procedure

1. Install the oil cooler lines to the vehicle.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the nuts in order to secure the oil cooler lines to the oil filter adapter.

Tighten
Tighten the nuts securing the oil cooler lines to the oil filter adapter to 30 N·m (22 lb ft).

3. Install the nuts in order to secure the oil cooler lines to the radiator and the transmission.

Tighten
Tighten the nuts securing the oil cooler lines to the transmission and the radiator to 25 N·m (18 lb ft).

4. Remove the plugs from the following parts:

•	The ends of the oil cooler lines

•	The radiator openings

•	The oil filter adapter

5. Install the bolts, the washers, the nuts, and the clips in order to secure the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

6. With the engine running, check the oil cooler lines and the connections for leaks.

Transmission Oil Cooler Line Replacement 7.2L And MT Filter On Left

Removal Procedure

1. Remove the bolts, the washers, the nuts, and the clips that secure the oil cooler lines to:

•	The engine

•	The transmission

•	The frame rail brackets

2. Remove the nuts securing the oil cooler lines to the radiator and the transmission.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the radiator with a lint-free material.

3. Remove the nuts securing the oil cooler lines to the oil filter adapter.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the oil filter adapter with a lint-free material.

4. Remove the oil cooler lines from the vehicle.

Installation Procedure

1. Install the oil cooler lines to the vehicle.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the nuts in order to secure the oil cooler lines to the oil filter adapter.

Tighten
Tighten the nuts securing the oil cooler lines to the oil filter adapter to 30 N·m (22 lb ft).

3. Install the nuts in order to secure the oil cooler lines to the radiator and the transmission.

Tighten
Tighten the nuts securing the oil cooler lines to the transmission and the radiator to 25 N·m (18 lb ft).

4. Remove the plugs from the following parts:

•	The ends of the oil cooler lines

•	The radiator openings

•	The oil filter adapter

5. Install the bolts, the washers, the nuts, and the clips in order to secure the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

6. With the engine running, check the oil cooler lines and the connections for leaks.

Transmission Oil Cooler Line Replacement 7.4L And MT643/MT653

Removal Procedure

1. Remove the bolts, the washers, the nuts, and the clips that secure the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

2. Remove the nuts securing the oil cooler lines to the radiator and the transmission.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the radiator with a lint-free material.

3. Remove the nuts securing the oil cooler lines to the oil filter adapter.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the oil filter adapter with a lint-free material.

4. Remove the oil cooler lines from the vehicle.

Installation Procedure

1. Install the oil cooler lines to the vehicle.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the nuts in order to secure the oil cooler lines to the oil filter adapter.

Tighten
Tighten the nuts securing the oil cooler lines to the oil filter adapter to 30 N·m (22 lb ft).

3. Install the nuts in order to secure the oil cooler lines to the radiator and the transmission.

Tighten
Tighten the nuts securing the oil cooler lines to the transmission and the radiator to 25 N·m (18 lb ft).

4. Remove the plugs from the following parts:

•	The ends of the oil cooler lines

•	The radiator openings

•	The oil filter adapter

5. Install the bolts, the washers, the nuts, and the clips in order to secure the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

6. With the engine running, check the oil cooler lines and the connections for leaks.

Transmission Oil Cooler Line Replacement 7.4L And AT545

Removal Procedure

1. Remove the bolts, the washers, the nuts, and the clips that secure the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

2. Remove the nuts securing the oil cooler lines to the radiator and the transmission.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the radiator with a lint-free material.

3. Remove the nuts securing the oil cooler lines to the oil filter adapter.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the oil filter adapter with a lint-free material.

4. Remove the oil cooler lines from the vehicle.

Installation Procedure

1. Install the oil cooler lines to the vehicle.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the nuts in order to secure the oil cooler lines to the oil filter adapter.

Tighten
Tighten the nuts securing the oil cooler lines to the oil filter adapter to 30 N·m (22 lb ft).

3. Install the nuts in order to secure the oil cooler lines to the radiator and the transmission.

Tighten
Tighten the nuts securing the oil cooler lines to the transmission and the radiator to 25 N·m (18 lb ft).

4. Remove the plugs from the following parts:

•	The ends of the oil cooler lines

•	The radiator openings

•	The oil filter adapter

5. Install the bolts, the washers, the nuts, and the clips in order to secure the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

6. With the engine running, check the oil cooler lines and the connections for leaks.

Transmission Oil Cooler Line Replacement 7.2L And MD Series

Removal Procedure

1. Remove the bolts, the washers, the nuts, and the clips that secure the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

2. Remove the nuts securing the oil cooler lines to the radiator and the transmission.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the radiator with a lint-free material.

3. Remove the nuts securing the oil cooler lines to the oil filter adapter.

•	Plug the ends of the oil cooler lines with a lint-free material.

•	Plug the openings to the oil filter adapter with a lint-free material.

4. Remove the oil cooler lines from the vehicle.

Installation Procedure

1. Install the oil cooler lines to the vehicle.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the nuts in order to secure the oil cooler lines to the oil filter adapter.

Tighten
Tighten the nuts securing the oil cooler lines to the oil filter adapter to 30 N·m (22 lb ft).

3. Install the nuts in order to secure the oil cooler lines to the radiator and the transmission.

Tighten
Tighten the nuts securing the oil cooler lines to the transmission and the radiator to 25 N·m (18 lb ft).

4. Remove the plugs from the following parts:

•	The ends of the oil cooler lines

•	The radiator openings

•	The oil filter adapter

5. Install the bolts, the washers, the nuts, and the clips in order to secure the oil cooler lines to the following parts:

•	The engine

•	The transmission

•	The frame rail brackets

6. With the engine running, check the oil cooler lines and the connections for leaks.