greetings again my1stcamaro, with the info you have just given me. We might just be able to solve your problem. To quote the 1989 service manual for the coolant fan on V8 vin E engines. The coolant fan relay is activated by the coolant fan switch. The switch closes when the coolant temperature is over 116 degrees centigrade (243 degrees farenheit) completing a path to ground through the cooling fan relay windings. The relay contacts then close and voltage is applied to
the coolant fan. when the coolant temperature
drops to 116 degrees C (243 degrees F), the switch opens and the coolant fan stops.
In A/C equipped vehicles, the A/C control head completes a path to ground for the coolant fan relay. Voltage is then applied to the coolant fan.
So in essence, unless your engine gets really hot, your coolant fan won't come on unless you turn on the A/C. If you would like to check your coolant fan switch to make sure it is not bad. Disconnect the wire from the coolant fan switch, turn ignition switch to run but don't start engine. Jumper the black wire to ground, if the fan runs, replace the switch. The switch is located above the starter on the lower r/h side of the engine, it only has a single wire going to it. A word of advice if you do change that switch, drain the radiator first and make sure the engine is cold.
good luck and hope this helps you!!!!!!!!