racereddy20

i remember when I first bought my car I didnt know much about it. I remember that the guy I bought if from told me that the fan didnt kick on by itself, you had to turn on the ac to get it to turn. So one day I bought the service manual and read the schematics. I found the fan switch in the wiring diagrams but the manual didnt even mention it (haynes manual). I bought a new one for refernce reasons and decided I'd look for it. I found it when I was installing headers in my car. I realized that I have no wire to plug into the switch (passangers side between 6 & 8). So can I just splice the wire where it plugs into the relay and run a new wire to the switch?

racereddy20

btw when I installed the cam I took extra time to look for the green/white wire in the harnesses leading to that side. No luck. I figured that since the rest of the stuff was out of the way I could trace the wire down easier. I saw where the green\white wire enters the firewall to terminate on the ac/heater switch. Need help soon.

racereddy20

anyone?

deadbird

On a TBI car (and this isn't etched in stone so...) the fan is primarialy controlled only by the fan switch the should be in the pass. side head. This should tie in with the wiire running to the A/C which is the other kicker to the fan turning on.

If your car has no switch, I'd suggest going out & buying one, removing whatever is in the head now & installing the switch. Wire the switch to the green (or green/white) wire at the relay. Now you fan will kick on at a comfy 238º as determined by the fine engineers at GM. If you do a search however, lower temp switches came in other vehicles that will screw into the head of your motor. Also in those threads are p/n's listed to help you out even more in your hunt. If your feeling rich (and generalizing, most 3rdgenners are cheap) you can order a JET or Hypertech fan switch from Jegs or Summit for roughly $40. Take your pick..

The cheapist solution is to simply ground the green wire from the rlay and the fan will run 100% of the time (or until it breaks and except when the car is turned off). A $1.05 alternate to that is to steal some speaker wire from the home stereo & buy a switch from autozone, wire the switch to the green wire, the other half of the switch to a ground and 'tada', you now have the fan under your complete control.

Pick a winner & good luck

racereddy20

Ok let me explain this again. The motor has a fan switch. There is no green white wire plugged into this switch. There is no wire in the vicinty to plug into the switch. So I'm wondering if I can jsut splice a wire from the relay to the switch so that my fan turns on by itself. If I can just ground the green white wire so that the fan stays on all the time I might just do that.

deadbird

Aside from crappy spelling, I thought I answered your question. Maybe I overdid it though.

Green wire = relay ground.

Anything that grounds the relay will make the fan run.

racereddy20

thanks deadbird. Sorry for the hasty response earlier. I was having a bad day at work and I was trying to read it as fast as possible (boss was walking around having a bad day too). I only read about half of it and posted. I took the free.99 way out tonight. I had some speaker wire. I grounded out the green/white wire and voila mission accomplished. Thanks once again.

Peter:hail: