Hammerhead

My cooling fans are not kicing on. The relay seems fine, the wiring seems fine, but they are not kicking on at any time. I have them piggy-backed, but that has never been a problem in 4 years. I don't have the time until the weekend to diagnose them, so I need to rig a temporary fix until this weekend. Does anyone have any suggestions? Can I run a hot line from the fuse block?

olderguy

iTrader: (19)

Try shorting the switch wire in the thermostat housing to ground

ruger988

you could just use a toggle switch...find a switched power source and go from there

Arkmage

iTrader: (3)

they are controlled on a ground side switch... all you need to do is put a ground wire to the currect pin on the relay and they'll come on when the ignition is on.

Hammerhead

Well, I can't say that it's not the fans anymore. I am getting 12-14 vollts coming to the fan harness. I tried grounding out the thermo wire and heard the relay clicking. Swapped in a new relay and got the same thing. I'm guessing that either the wiring between the fans is shot or its the fans themsleves. I have one stock (pass side) and one Spal (driver side) fan. I didn't expect them to BOTH crap out.

Arkmage

iTrader: (3)

if they are wired in series then one being crap will cause both to not work... fyi.

Hammerhead

Well, it turns out the SPAL fan died. For now, I hot-wired the A/C fan to come on with the ignition until I can apply a permanent fix this weekend. Thanks for your suggestions. They were most helpful!