Ferrari Mailing List: Re: 308 fans

[Todd Walke (racertod]

Matt wrote:

> I have the wiring diagram at home but haven't pulled it out yet. When you 
> say "switch" I assume you mean the sender at the bottom of the radiator? 
> With the way that sender works, are you suggesting that it simply 
> "listens" for a certain temperature and then closes the circuit when that 
> temp is reached? Therefore if I short the two spade connectors the fans 
> should come on?

        I think the 308 uses the same style thermoswitch as my VWs.
        You are correct, the two terminals on the switch are only 
connected together electrically when the coolant temp is above the rated 
temp for the switch.
        If you pull the two wires off the thermoswitch, turn the ignition 
on (I'm assuming the fans only work with the ignition on) and touch the two 
wires together (or use a jumper wire), the fans should come on.  If they 
do, that means the rest of the fan wiring and fuses is OK and the switch is 
toast.  If the fans do not come on, then that implies that some part of the 
wiring to the fans or the fans themselves are faulty.


Todd
Seattle,WA
'86 GTI, Red of course. (exciting racey car) 276,000 miles
'01 Golf TDI, silver.   (new work car)       480,000 miles
'87 Golf, Polar Silver. (retired work car)   654,000 miles <- Gone to a new 
home :(
http://www.pureluckdesign.com <-Ferrari & VW stuff