[BNaylor]

Originally Posted by czechnate

I think I have tried everything but obviosly not. When i take the ECT out, that is the only way I can get the fans to come on besides using the A/C. I have tried the relays too. Is there anything else anyone can think of? thanks all. Nate

Here is some info that may be helpful on cooling fan operation.

Cooling System Fans Description & Operation

The fan system includes the following components:

* Two (2) electric cooling fans (Left & Right)
* Three (3) fan relays (COOL FAN 1, COOL FAN & COOL FAN 2)
* Two (2) fuses (30 Amp Maxi fuses #6 [COOL FAN 1] & #1 [COOL FAN 2])
* All associated wiring & connectors

There are three basic modes for the fans: OFF, Low-Speed, and High-Speed. These modes are controlled by the Powertrain Control Module (PCM).

Fans OFF:

* When the coolant temperature is less than about 220°F (104°C) or
* The A/C refrigerant pressure is less than 190 psi (A/C off).

Low-Speed:

* When the coolant temperature is between about 220°F (104°C) and 230°F (110°C) or
* The A/C refrigerant pressure is more than 190 psi (1310 kPa) or
* When car is turned off and the coolant temp is more than about 284°F (140°C) and system voltage is more than 12 Volts. Fans will run for about 3 minutes.

High-Speed:

* When the coolant temperature is above about 230°F (110°C) or
* The A/C refrigerant pressure is more than 240 psi (1655 kPa) or
* When certain DTCs are set.

Other information:

* The thermostat for these cars normally opens at about 195°F (93°C)
* The "Engine Coolant Temperature" message should appear (on dash) if the engine coolant temperature is above about 262°F (128°C). PCM sends a message to the Instrument Panel indicating temperature.
* The "Engine Coolant Level" indicator should appear (on dash) if the coolant level goes below a certain level.