Transmission Oil Cooler - Transmission Overheating
84ford17Article No. 84-5-19
TRANSMISSION - AUTOMATIC - EXTERNAL TRANSMISSION OIL COOLER
- MALFUNCTION DURING OPERATION IN EXTREMELY COLD WEATHER
( - 20 ~F/ - 29 ~C) - ALL RANGER/ BRONCO II AND F250/350 WITH (6.9L DIESEL) ENGINE
LIGHT TRUCKS 1983-84 RANGER/BRONCO II & F250/350
When the affected vehicles are operated in severe lowambient temperatures ( - 20 ~F/ - 29 ~C or lower), the automatic transmission may overheat and be damaged as a result of restricted fluid flow through the auxiliary cooler caused by the thickening of transmission fluid.
If transmission service or replacement is required due to transmission damage, the auxiliary transmission oil cooler (7A095) should be replaced as shown:
Service
Application Part
Number
Bronco II/Ranger - Built from Job #1, 1983 E4TZ-7A095-A
through February 2, 1984
F250/350 with 6.9L - Built from Job #1, E4TZ-7A095-B
1983 through February 2, 1984
Ranger - Built prior to Job #1, 1983 E3TZ-7A095-D
The new auxiliary transmission oil cooler assembly (7A095) contains an internal bypass to prevent excessive cooling of the transmission fluid which allows a portion of the transmission fluid to flow unrestricted through the cooler in extreme cold weather operations. The new oil cooler does not affect the flow of fluid during vehicle operations under normal or warm weather conditions.
The external oil cooler assembly removal and installation procedures for the subject vehicles are as follows:
FIGURE 38:
Removal and Installation - Ranger/Bronco II
1. Remove the grille.
2. Loosen the two hose clamps (376240-S1) attaching the two flexible hoses to the oil cooler assembly (7A095) and remove both hoses from the cooler assembly (Figure 38).
FIGURE 39:
3. Remove screws (N610959-S2) attaching the oil cooler assembly to the radiator support and remove the cooler assembly (Figure 39). Remove clip
(N802268-S11) from the cooler inlet tubes and retain clip.
4. Install clip (N802268-S11) to the new oil cooler assembly inlet tubes (Figure 39).
5. Position and install the cooler assembly to the radiator support. Reconnect the cooler hoses to the cooler assembly (Figure 39). Securely tighten each hose clamp to assure a leak-proof connection.
6. Check level of transmission fluid in transmission; add fluid if required.
7. Replace the grille.
FIGURE 40:
Removal and Installation - F250/350 w/6.9L Diesel Engine
1. Remove the grille.
2. Loosen the two hose clamps (376240-S1) attaching the two flexible hoses to the oil cooler assembly (7A095) and remove both hoses from the cooler assembly (Figure 40).
FIGURE 41:
3. Remove the three clips (N802268-S100/ 385945-S10) from the cooler assembly and retain clips.
4. Install the three clips (N802268-S100/ 3859345-S10) to the cooler assembly as shown in Figure 41.
FIGURE 40:
5. Position and install the cooler assembly to the radiator support. Reconnect the cooler hoses to the oil cooler assembly (Figure 40). Securely tighten each hose clamp to assure a leak-proof connection.
6. Check level of transmission fluid in the transmission. Add fluid if required.
7. Replace the grille.
PART NUMBER PART NAME CLASS
E4TZ-7A095-A Aux. Transmission Oil Cooler C
Assembly
E4TZ-7A095-B Aux. Transmission Oil Cooler C
Assembly
E3TZ-7A095-D Aux. Transmission Oil Cooler C
Assembly
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: SP7095A84
TIME: Ranger/Bronco II - 0.5 Hr. F-Series w/6.9L (D) - 0.4 Hr. DLR. CODING: Basic Part No. 7A095 Code: 55