Re: [DML] FAN RELAYS AND WIRING (Was: Subject: Re: fans run continuously, str...

[dherv10@xxxx]

Stian, Out of all the relay's in the car, there are only two or three that 
are really marginal. That is the Fan Fail relay #1 and the Fan relay it's 
self and I would also
look at the head lights relay. Like any mechanical item, the contacts get 
dirty or corroded over years and need to be replaced. But normally, most will 
last a long time. The new 40 amp I use and sell for $7.95 are made by a 
little German company named Siemens. Due to the cost it's normally better to 
throw away the old ones and just replace them. But, they don't all need to be 
replaced. They are all enclosed and really impose no fire hazzard. If they 
don't work, they just simply don't work. It's the wires leading to them you 
have to watch out for. The thing you have to watch out for are the wires 
going into the relay sockets. If the connections arn't tight and clean, then 
that can cause a electrical short, heat up the wires and start a melt down. 
Also, the device your plugging in needs to have as much contact with the 
mating connector as possible. You hear about the wires pushing down when a 
relay is installed. It's good to remove the two screws that hold in the 
relay's and also press in the connector from the bottom while holding the 
realy from the top. Then and only then are you assured that the contacts are 
making as much contact as possible. The less contact connection, then the 
less connector to carry the current. Remember, Clean and tight.on any 
electrical connection. That's also why I solder all my joints if possible. 
As far as the wiring, it's all in the wiring diagram. If your unable to read 
a wiring diagram, Yes, I have a complete wiring harness out of a original car 
I could photo and post on the web site if needed. Are you talking about 
underneath the relay's.
John Hervey
http://www.specialtauto.com/
Home of the Fan Fix dual 2 x 2.