THERMOSTAT
On 1.6L, 2.3L and 3.3L engines, thermostat is located in thermostat housing on cylinder head. On 5.0L and 5.8L 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) |
|---|---|---|
| 1.6L | 192-197 (89-92) | 212-221 (100-105) |
| 2.3L | 188-195 (87-91) | 212 (100) |
| 3.3L | 193-200 (89-93) | 212 (100) |
| 5.0L | 193-200 (89-93) | 221 (105) |
| 5.8L | 193-200 (89-93) | 221 (105) |
THERMOSTAT OPENING TEMPERATURES
PRESSURE CAP
On Escort, EXP, LN7 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, Cougar, Fairmont, Mustang and Zephyr 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
If wear or damage exists, water pump replacement is recommended. No attempt to overhaul or repair pump should be made.
MAINTENANCE
Vehicle maintenance schedule "B" or (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.
| Application | Quarts (L) | |
|---|---|---|
| Escort, EXP, LN7 & Lynx | (1) 6.7 (6.3) | |
| Cougar, Fairmont & Zephyr | ||
| 2.3L | (2) 8.6 (8.1) | |
| 3.3L | 8.5 (8.0) | |
| LTD & Marquis | ||
| 2.3L | (2) 8.6 (8.1) | |
| 3.3L | 8.5 (8.0) | |
| 3.8L | 10.7 (10.1) | |
| Capri & Mustang | ||
| 2.3L | (2) 8.6 (8.1) | |
| 3.8L | 10.7 (10.1) | |
| 5.0L | (2) 13.1 (12.4) | |
| Thunderbird | 8.4 (8.9) | |
| Continental, Town Car & Mark VI | 13.0 (12.3) | |
| Crown Victoria & Grand Marquis | ||
| 5.0L | 12.7 (12.0) | |
| 5.8L | (3) 13.8 (13.0) | |
| (1) Capacity with A/C is 8.1 qts. (7.6L). (2) Add .4 qts. (.3L) with A/C. (3) Police use only. | ||
| (1) | Capacity with A/C is 8.1 qts. (7.6L). |
| (2) | Add .4 qts. (.3L) with A/C. |
| (3) | Police use only. |
COOLANT CAPACITY