THERMOSTAT
On 1.9L and 2.3L engines, thermostat is located in thermostat housing on cylinder head. On all other engines, thermostat is located in thermostat housing on intake manifold. Test thermostat to make sure it starts to open and is fully open at specified temperatures.
| Application | Starts Open °F (°C) | Fully Open °F (°C) |
|---|---|---|
| 1.9L | 192-197 (89-92) | 212-221 (100-105) |
| 2.0L | 188-193 (87-90) | 212 (100) |
| 2.3L | 188-195 (87-91) | 212 (100) |
| 2.5L | 188-195 (87-91) | 212 (100) |
| 3.0L | 193-200 (89-93) | 221 (105) |
| 3.8L | 193-200 (89-93) | 221 (105) |
| 5.0L | 193-200 (89-93) | 221 (105) |
| 5.8L | 193-200 (89-93) | 221 (105) |
THERMOSTAT OPENING TEMPERATURES
PRESSURE CAP
On Escort, EXP and Lynx models, a 16 psi (1.1 kg/cm 2 ) pressure cap is used. Test cap at 13-19 psi (.9-1.3 kg/cm 2 ). On Capri and Mustang models with standard cooling, a 13 psi (.9 kg/cm 2 ) pressure cap is used which should be tested at 11-17 psi (.7-1.2 kg/cm 2 ). On all other models, a 16 psi (1.1 kg/cm 2 ) pressure cap is used. Test this cap at 13-19 psi (.9-1.3 kg/cm 2 ).
WATER PUMP
Water pump is serviced only as an assembly.
MAINTENANCE
Vehicle maintenance schedule "B" is on glovebox and engine emission control information decal. Check coolant condition annually. Drain, clean, flush and refill system if dirt or rust impairs cooling ability. Hoses and clamps should be inspected every 3 years or 50,000 miles, whichever occurs first.
COOLANT
Note. Actual capacity figures are shown, but many vary 15% due to system variations. Capacities include coolant reservoir filled to ADD mark).
| Application | Quarts (L) | ||
|---|---|---|---|
| FWD Models | |||
| 1.9L | 7.0 (6.6) | ||
| 2.0L Diesel | 8.0 (7.6) | ||
| 2.3L | 7.5 (7.1) | ||
| 2.5L | 8.3 (7.9) | ||
| 3.0L | 11.0 (10.4) | ||
| RWD Models | |||
| Mustang | |||
| 2.3L OHC | 9.9 (9.4) | ||
| 5.0L | 14.1 (13.3) | ||
| Grand Marquis | |||
| 5.0L | 14.1 (13.3) | ||
| 5.8L | 16.2 (15.3) | ||
| Cougar & Thunderbird | |||
| 2.3L MPFI Turbo | 10.8 (10.2) | ||
| 3.8L | 11.7 (11.1) | ||
| 5.0L | 14.2 (13.5) | ||
| Continental & Mark VII | |||
| 5.0L | 14.2 (13.5) | ||
| Lincoln Town Car, Crown Victoria & Grand Marquis | |||
| 5.0 | 14.0 (13.3) | ||
| 5.8 | (1) 15.1 (14.2) | ||
| (1) Police use only. | |||
| (1) | Police use only. |
COOLANT CAPACITY