electric fan

[albacore00]

Replaced ac compressor on my 98 Cherokee. Nice air. I know the electric fan works but checked relay fuses and they are okay but fan doesn't go on automatically. Is there a way to wire the fan to a three way switch that would be on/ off and a timed position?

 

[greg92jeepxj]

Have you checked the relay in the PDC which should be next to the a/c clutch relay for the electric fan ? It should energize with the a/c clutch relay.

 

[albacore00]

Have you checked the relay in the PDC which should be next to the a/c clutch relay for the electric fan ? It should energize with the a/c clutch relay.

Did check relay. Is a functioning relay just not turning fan on.

 

[greg92jeepxj]

Provided that terminal 87 on the fan relay is putting out a voltage signal I gather you are not getting a reading at the harness plug at the electric fan ? If so , you'll want to check the ground on the harness plug. I'm also assuming that the electric fan is functional or you would not seek to add a thermo type switch to activate the fan. I only ask these questions the effort you apply to adding a thermo type switch to activate the fan could be spent getting the fan circuit working again. As long as the cooling system is working well , the factory electric fan is fairly efficient ( I find ) as kicks on with the activation of the compressor clutch. Just my thoughts .