I grounded the green and white wire for the fan relay and the fans came on. Does this mean the relay is good or bad? I bought a new one just in case.
Also, what is the relay next to the fender, on the firewall? That relay also has two green/white wires and I tried grounding them and nothing happened. Thank goodness because that was the wrong relay.

I had read in an earlier post that there would only be one relay with a green and white wire. Someone was wrong.

 

That was probably me.


Anyways, if the fans turned on, your relay is good.

 

so what else should I look for?

 

The fan swith or wiring is probably bad at this point.

 

I have the same problem. Ive replaced every sensor and relay possible for the fan and it still doesnt turn on but when i jump it from the battery it turns on.

 

get a toggle switch until you fix this, or run a wire from one of the lines that turn on power when your key turns.

 

I've wired a toggle switch from the green and white wire and they come on when I flip the switch. Where is the fan switch? I haven't replaced the temp switch on the intake yet either.