Removal & Installation: Thermostat: Removal
WARNING: This page is about a different car, the 1995 Ford Aerostar. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Do not pry on water thermostat (8575) to remove.
- Drain the cooling system so that the coolant level is below the water thermostat as described in COOLING SYSTEM BLEEDING .
- Disconnect the heater return hose at thermostat housing located on the left front lower side of the engine (6007) (2.3L only). Disconnect engine coolant temperature sensor (ECT sensor) (12A648) connector (2.3L only).
- Remove upper radiator hose (8260).
- Remove the coolant outlet housing retaining bolts. Pull the elbow away from the cylinder head (6049) or manifold sufficiently to provide access to the water thermostat. Remove the water thermostat and gasket.
THERMOSTAT PARTS 2.3L ENGINE
| Item | Part Number | Description |
| 1 | N80025-S | Screw, M8-1.25 x 18 |
| 2 | 8594 | Water Outlet Connection |
| 3 | 8575 | Water Thermostat |
| 4 | 8255 | Gasket |
| 5 | 6049 | Cylinder Head |
| 6 | 6010 | Cylinder Block |
| 7 | 8507 | Water Pump Housing Gasket |
| 8 | 8501 | Water Pump |
| 9 | N605663-S100 | Bolt, M8-1.25 x 53 |
| 10 | 12A648 | Engine Coolant Temperature Sensor |
| A | - | Tighten to 20-30 N-m (14-21 Lb-Ft) |
| B | - | Tighten to 16-24 N-m (12-17 Lb-Ft) |
THERMOSTAT PARTS 4.0L ENGINE
| Item | Part Number | Description |
| 1 | 10884 | Water Temperature Sender |
| 2 | 12A648 | Engine Coolant Temperature Sensor |
| 3 | 8592 | Water Outlet Connection |
| 4 | - | Air Release Valve (Part of 8575) |
| 5 | E800156 | Bolt |
| 6 | E854214 | Sealing Ring (See B) |
| 7 | E854214 | Water Thermostat |
| A | - | Tighten to 9-12 N-m (77-110 Lb-In) |
| B | - | Sealing Ring Must Be Preassembled onto Thermostat Prior to Thermostat Installation. Air Release Valve Must Be Positioned Once Thermostat Is Installed. |