harrisonl84

its hasnt been working for a while now. Is there usualy a common fault re wiring or is it likely the fan is broken? any ideas of how to test?

harrisonl84

its the 1 by the battery

dexster81

iTrader: (1)

You could run the car up so its hot when the fan should work then connect a test lamp up to the plug (not the fan) and see if it lights up if so then you have a live feed and the fans your fault

harrisonl84

thanks mate so need to find mate with a test lamp.

Brun

I assume your car has air con????? That is what the second fan is in place for. If the car didn't have a/c, it wouldn't have a second fan.
Start your car and click the a/c on and the fan should kick in

dexster81

iTrader: (1)

You can buy a test lamp from Halfrauds for a couple of pound

Just a note I have aircon but only one fan

Brun

Interesting that you don't have one. What year is your car?
Either way, i retro fitted a/c to my MY99 and the second fan (nearest to the battery) was the one which came with the kit and only cut in with the a/c

harrisonl84

Yes there is an air con button inside but im certain it doesnt work! so do you think this is the reason? would it need refilling?

by the way the car is a 97 wrx version 3...

Brun

Worth checking out

mje_wrx

iTrader: (6)

mine does same, what i found was one fan would kick in first, then hotter engine got both would kick in. took my engine a long time tho, about 20 mins idling and holding revs at 2k ish for a while to make it work. but it did eventually kick in.

other option although its cheating, bridge wires from working fan over, both will always kick in then, good for peace of mind and better cooling

dont want to scare you, but when i noticed only one of mine was coming on and testing it etc. 100 miles ish later the engine decided to cook. dunno why yet, currently stripping it down trying to find a fault. but it does av a simtek ecu and many people have said only one of their fans on simtek kicks in first. dunno if its related at all. doubt it. and hope not.

harrisonl84

nah mines been like this for about a year and doesnt ever over heat. just wana get it sorted.

mje_wrx

iTrader: (6)

In that case its as people have already said. air con related. or when engine gets extremely hot

53

iTrader: (41)

I only run one fan since the FMIC, no issues.

Saint AAI

From what I've read on here (may not be true), the second fan is for the air con like Brun has already mentioned. So if your air con doesn't work, that's probably why your second fan doesn't. I have an MY99, no air con, and only one fan.