Engine Compartment Temperatures

[woodenewe]

Recent concerns with the engine compartment fan running after engine shut down even in cool weather suggested that the fan's temperature sensor may not hasve been installed correctly whrn the engine was replaced. Where is the sensor and how is it mounted? What is the normal temp level that comands the fan to run?

[Loren]

Switch-on conditions for engine compartment fan (this fan pulls air into the engine compartment). The engine compartment fan is switched on when the engine compartment temperature is > 176 degrees F or the coolant temperature is > 216 degrees F.

After-running of engine compartment fan

If the ignition is switched off and the engine compartment temperature is more than 140 degrees F, the DME control module remains in readiness for another 20 minutes. During this time, the engine compartment temperature is retrieved every 10 seconds. If the engine compartment temperature is > 185 degrees F , the engine compartment fan is switched on for 20 seconds. If the engine compartment temperature is still > 185 degrees F after this time, the fan remains on for a further 30 seconds.

Engine Compartment Temperature Sensor - item 12

[woodenewe]

Loren, thank you for the information. I'll take a look tomorrow to see if I can find the sensor. I'll also try to tske some data if the Durametric captures the compartment temps.

- Bob

[george996]

i found the following th check the sensor;

1. Remove connector in engine compartment.

2. Connect ohmmeter to temperature sensor connector,

pins 1 and 4.

Display: 2 - 3 k 0hm at 20 °C.