Expansion Tank
| Item Number | Description |
|---|---|
| 1 | Bleed hose connection |
| 2 | Bleed screw |
| 3 | Level sensor |
| 4 | Coolant supply/expansion hose connection |
| 5 | Filler cap |
The expansion tank is installed on the left-hand (LH) side of the cooling module, attached to the radiator support assembly and the floor sidemember. A filler cap, bleed screw and level sensor are incorporated into the expansion tank. MAX and MIN level markings are molded onto the exterior of the tank.
The expansion tank provides the following functions:
- Service fill.
- Coolant expansion during warm-up.
- Air separation during operation.
- System pressurization by the filler cap.
The expansion tank has an air space of approximately 1.1 liters (1.16 US quarts), above the MAX level, to allow for coolant expansion.