Aux. Oil Cooler Install Procedure 89-92 F-Series 7.3L Diesel
AUXILIARY OIL COOLER INSTALLATION PROCEDURE 1989-92 F-SERIES 7.3L DIESELNOTE:
THE HEATER BYPASS SYSTEM MUST BE CHECKED AND UPDATED AS REQUIRED TO CONFORM WITH TSB ARTICLE 90-25-17 BEFORE INSTALLATION OF THE AUXILIARY OIL COOLER.
TRANSMISSION AUXILIARY OIL COOLER INSTALLATION (FIGURE 4)
1. Attach the auxiliary oil cooler bracket (F4TZ-7B142-A) to the radiator support using two (2) screws (N610959-S36, 6.3x1.81x19.0 hex head).
2. Attach the auxiliary oil cooler bracket (E3TZ-7B142-A) to the radiator support brace using two (2) screws (N610959-S36 6.3x1.81x19.0 hex head).
3. Align the auxiliary oil cooler (E4TZ-7A095-B) to the cooler brackets and, using two (2) clips (N803284-S100) and one (1) screw (N610959-S36 6.3x1.8x19.0 hex head), secure the auxiliary cooler to the right hand bracket.
4. Using one (1) clip (N803284-S100) and one (1) screw (N610959-S36, 6.3x1.81x19.0 hex head), secure the auxiliary cooler to the left hand bracket.
5. Torque screws in Steps 1, 2, 3, and 4 to 4-8 lb.ft. (5-11 N-m).
AUXILIARY COOLER LINE INSTALLATION (FIGURE 5)
1. Trace the rear transmission cooler return line to the radiator in-tank cooler outlet fitting.
2. Disconnect the rubber hose from the radiator in-tank cooler outlet fitting.
3. Using bulk hose (D5AZ-7B093-A) and hose clamps (376240-S100), connect the radiator in-tank cooler outlet fitting to the auxiliary transmission oil cooler inlet (top fitting).
4. Tighten the hose clamps installed in Step 3.
5. Using bulk hose (D5AZ-7B093-A) and hose clamps (376240-S100), connect the auxiliary transmission oil cooler outlet (bottom fitting) to the rear transmission cooler return line and tighten the hose clamps.
6. With the engine running, check the transmission fluid level and top off as required. Check for leaks at all connections.