LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1990 >> Aerostar Van Window Extended, 3.0 U, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Engine Sensors & Switches >> Engine Coolant Temperature (ECT) Sensor
September 30: LEMON manuals is back up on a temporary server! Slowness is possible

Engine Coolant Temperature (ECT) Sensor

Disconnect ECT temperature sensor connector. Set DVOM to 200 k/ohm scale. Measure resistance across sensor terminals. See the ECT SENSOR RESISTANCE/VOLTAGE  and Figure for resistance specifications.

ECT SENSOR RESISTANCE/VOLTAGE

Sensors °F (°C) Specifications Volts (K Ohms)
ECT Sensors
248 (120) .27 (1.18)
230 (110) .35 (1.55)
212 (100) .46 (2.07)
194 (90) .60 (2.80)
176 (80) .78 (3.84)
158 (70) 1.02 (5.37)
140 (60) 1.33 (7.70)
122 (50) 1.70 (10.97)
104 (40) 2.13 (16.15)
86 (30) 2.60 (24.27)
68 (20) 3.07 (37.30)
50 (10) 3.51 (58.75)