Like the title says. I tried replacing 2 of the 3 relays (autozone only had 2) and they would not come on. I find it hard to believe both fans would go out at the same time. Any ideas how to fix, its realllll hot here in Texas. Thanks

 

Check with the schematics. I believe you have an inline fusable link that could have gone bad. You could also check your wiring connections as they may not have a good connection.

J

 

Cooling system operation and testing info

 

Is it OK to change out the relays while the car is running??

 

I can't see how it would hurt anything, but it might throw a trouble code.