well there are a few ways you could do it. Like you said you could do the switch. Another way and easier would be to run it straight into the fuse box and find a spot that will give juice when the ignition is on. Another way, the way I choose was to install a fan kit. it will include everything you need and kick on automatically when your car becomes so hot.

Here is a link to the one I purchased. So far its worked great. painless wiring really does live up to their name.

http://store.summitracing.com/partdetail.asp?autofilter=1∂=PRF-30103&N=700+115&autoview=sku

 

Well, if your electric fan doesn't come on when the engine gets too hot, then what makes you think that a switch or an expensive "kit" will make it run?

You need to find out why the fan isn't turning on first.
Use this troubleshooting article to pinpoint the source of your problem and then you know what to fix.
http://www.austinthirdgen.org/index.php?pid=36

On a TBI engine, the fan doesn't kick in until the temperature hits about 235 degrees Farenheit. 220 is normal operating temperature so no worries. Unless you see 240+, you're not overheating. Maybe you just never let it get hot enough for the fan to kick in?

Lou

 

Dont get me wrong. The fan works. Maybe TPI is different in the way they cool than the TBI that I have. The fan is on as long as the air conditioning is on it has nothing to do with temp. I want a switch. I just dont know how to wire one.

 

Welcome to TGO, Hank. A search is always a good thing on this site. Check the sticky at the top of the page in "Cooling". You may find something useful there.

JamesC

 

I see, I did not notice that your fan runs with A/C on, my bad.
So unless your temperature switch in the passenger side head is bad, it should turn the fan on at 235 degrees to cool the engine down. If it doesn't, it can be easily replaced and the whole system will work as designed, keeping your engine cool automatically, without you having to interfere.

But if you really want a switch, James said it the best, either check out the stickies or search for a fan switch, you'll find a lot of information. And btw, you won't need an extra relay.

Lou