Automatic Transmission Cooling System: Maintenance Ford Econoline E150

Transmission Fluid Cooler Leaks at Radiator

Transmission fluid may leak between the radiator transmission fluid cooler and the transmission fluid cooler fitting (not the cooler line into the fitting), which may result in a residue of transmission fluid on the radiator tank around the fluid cooler fitting. Insufficient thread sealer on the transmission fluid cooler fitting may cause this.

Scheme 721

Scheme 722

Scheme 723

1. Clean the area around the transmission fluid cooler fittings.
2. Verify that transmission fluid is leaking between the transmission fluid cooler and the transmission fluid cooler fitting (not the transmission fluid cooler line fitting into the transmission fluid cooler fitting).
3. Remove the radiator from the vehicle and place it on a flat surface with the transmission fluid cooler fittings facing upward. For additional information, refer to «ENGINE COOLING»(ref-210139) .
4. Clean the area around the transmission fluid cooler fittings so that contaminants do not enter the transmission fluid cooler when the transmission fluid cooler fittings are removed.
5. Remove the upper transmission fluid cooler fitting.
6. Once the fitting is removed from the transmission fluid cooler, verify that there is a gasket between the transmission fluid cooler and the inside of the radiator tank. If there is no gasket, install a new radiator. If there is a gasket, proceed to the next step.
7. Inspect the transmission fluid cooler fitting threads for damage. If the threads are damaged, install a new radiator. If the threads show no sign of damage, proceed to the next step.
8. Install a new O-ring on the transmission fluid cooler fitting.
9. Making sure that the gasket between the transmission fluid cooler and the inside of the radiator tank is still in place, install the transmission fluid cooler fitting.
10. Follow the procedure to install a new O-ring on the other transmission fluid cooler fitting.
11. Make sure that no radiator coolant has entered the transmission fluid cooler. Install the radiator in the vehicle.
12. Verify that both the transmission and the engine cooling system are at the correct fluid levels.

Auxiliary Transmission Fluid Cooler

MATERIAL

ITEM SPECIFICATION CHART

Auxiliary Transmission Fluid Cooler - Oil-to-Air Fluid Cooler, TorqShift

MATERIAL

ITEM SPECIFICATION CHART

Scheme 724

Scheme 725

Scheme 726

Scheme 727

Scheme 728

Scheme 729

1. Remove only the upper bolts by inserting a long extension and socket through the front grille and bumper.
2. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(ref-210109) .
3. Remove the bolts and the skid plate (4x4 only).
4. Remove the bolts and the air deflector.
5. Release the constant tension clamp from the cooler outlet to auxiliary cooler inlet fitting hose at the auxiliary cooler and disconnect the hose.
6. Release the constant tension clamp from the auxiliary cooler return hose to the remote mount fluid filter housing inlet hose at the bottom of the radiator. Separate the hoses.
7. Remove the remaining bolts from the oil-to-air (OTA) transmission fluid cooler.

Transmission Fluid Cooler Tubes - 4R100 Transmission

MATERIAL

ITEM SPECIFICATION CHART

Transmission Fluid Cooler Tubes - 4R70W Transmission

MATERIAL

ITEM SPECIFICATION CHART

Scheme 730

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(ref-210109) .
2. Remove the fluid cooler tube(s)/hose(s), as necessary.
3. To install, reverse the removal procedure. Fill the transmission with clean transmission fluid. For additional information, refer to «AUTOMATIC TRANSAXLE/TRANSMISSION - 4R70W/4R75W»(ref-210156) . Check for leaks.

Transmission Fluid Cooler Tubes - TorqShift

SPECIAL TOOL(S)

Scheme 731

MATERIAL

ITEM SPECIFICATION CHART

Scheme 732

Scheme 733

Scheme 734

Scheme 735

Scheme 736

Scheme 737

Scheme 738

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(ref-210109) .
2. Remove the bolts and the skid plate (4x4 only).
3. Remove the bolts and the air deflector.
4. Using the special tool, disconnect the fluid cooler tubes from the remote mount transmission fluid filter housing.
5. Remove the transmission fluid cooler lines from the transmission case.
6. Remove the nut, the fluid cooler tube bracket and the fluid cooler tubes.
7. Remove the three bolts from the remote mounted transmission oil filter bracket.
8. Remove the inlet and outlet lines from auxiliary fluid cooler and radiator in-tank reservoir. Remove the cooler line clips. Disconnect the fluid lines from the radiator in-tank reservoir. Remove the constant tension clamp from the auxiliary cooler outlet and disconnect the hose. Remove the constant tension clamp from the fluid filter return inlet line and disconnect the hose.

Scheme 739

Scheme 740

Scheme 741

Scheme 742

Scheme 743

Scheme 744

Scheme 745

1. Install the inlet and outlet lines from auxiliary fluid cooler and radiator in-tank reservoir. Install the cooler line clips. Connect the fluid lines to the radiator in-tank reservoir. Connect the hose and install the constant tension clamp from the auxiliary cooler outlet. Connect the hose and install the constant tension clamp from the fluid filter return inlet line.
2. Install the remote mount transmission fluid filter bracket.
3. Install the fluid cooler tubes, the fluid cooler tube bracket and the fluid cooler tube bracket nut.
4. Connect the transmission cooler inlet and outlet lines to the remote mount fluid filter housing.
5. Install the fluid cooler tubes in the front and rear cooler line case fittings.
6. Position the air deflector and install the bolts.
7. Position the skid plate and install the bolts (4x4 only).
8. Lower the vehicle.
9. Fill the transmission with the specified type and quantity of transmission fluid. For additional information, refer to «AUTOMATIC TRANSMISSION - TORQSHIFT»(ref-213722) .
10. Check for leaks.