Pos. | spare part no | Name |
1 | - | Upper Radiator Support Bracket |
2 | - | Radiator |
3 | - | Dual fan control module |
4 | - | High velocity air dampers (4 things.) |
5 | - | fan shroud |
6 | - | Electric fan |
7 | - | Lower Radiator Support Bracket |
8 | - | Fan motor |
9 | - | Coolant drain port |
10 | - | Radiator bottom bushing |
Radiator - transverse flow type, with flow from right to left, the main element of which is an aluminum heat exchanger. The lower part of the radiator is fixed in rubber bushings and supported by a steel bracket screwed to the end plates of the body side members. The upper part of the radiator is located in rubber bushings, which are fixed with brackets mounted on the hood latch panel.
Connections on each side of the radiator allow connection of the upper and lower hoses. The small diameter port at the top right serves to connect the air outlet line to the expansion tank. There is a coolant drain port on the bottom left side of the radiator.
The rear of the heatsink is covered by a fan shroud, which also supports the dual fans and the fan control module. Four high-speed air dampers located on the cowling serve to facilitate the passage of cooling air into the engine compartment, regardless of the operation of the fan. These dampers are actuated by the ram air as it passes through the front grille. The dampers open when the speed of the air passing through the radiator is sufficient to overcome the closing force of the dampers.
On vehicles equipped with an AWF21 automatic transmission, the transmission fluid is cooled in the transmission heat exchanger located on the rear left side of the radiator. The heat exchanger is connected to the radiator in the upper left third (on the cold side) and causes the flow of coolant to be limited as it passes through that part of the radiator. Since the coolant flow is limited, the coolant flows at a slower rate, creating a low temperature zone. This cools the coolant in this part of the radiator more than in the lower part to increase transmission fluid cooling.
For more information, see chapter: Gearbox Cooling (307-02 Transmission / transaxle cooling, Description and function).
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