OK. Got the engine idling after the swap and all is good...but the engine temp got up to 200F, with a 160F therm, and the Fan NEVER kicked on. So I shut her down.

What options do I have?
It could be beneficial to have it run constantly?
How do you wire it?

Got the INFL REST light on???

(I believe the ecm has power, everything is still there, just hooked up all the engine and left the comp)

((Brake light too???)

Thanks,
Franchise

 

The fan switch turns the fan ON when the temp reaches about 230 degrees.

So 200 is not a problem.

You just didn't wait long enough.

I would say your options are, to first ground the fan switch lead (goes to the switch in the pass side head) and see if it comes on; if so, then you know the relay and the fan itself are good.

If for some reason you just want to alter the cooling system, you can get a lower temp fan switch; from Hypertech, or Hayden, or from any parts store if you order the one for about a 87 Buick Grand National.

It would not be particularly beneficial to have it run constantly, unless you just don't like the motor for some reason, and want to change it out alot.

You wire it by putting it all back like it came. At least, that's the best way.

 

hey sofaking,

started her up, ran, drove. let temp get to 240-245....no fan.

wondering if I have power to it or not, or the relay/motor are still good.....how would i check?

it was a stock V6 fan.

Debating on just bolting on fan to water pump??

Thanks,
Franchise

 

When you did that, what happened?

 

Sofakingdom,

as for grounding the fan lead....didnt know which one....

for a 91 V6 FI.....I have 2 wires coming from the single fan...one is on the drivers side the other is on the pass side. Which one?

Did you mean the red wire from the small plastic jxn on the pass side of the rad support???

Please give me a little more insight b/c i dont want to butcher it all up.

Thanks,
Franchise

 

No, I mean the wire that goes to the fan switch in the pass side head. That's what tells the fan to come on. Should be dark green IIRC. It doesn't go to the fan itself; it goes to the relay, by way of the harness.

 

Hey,

I will take a look in a few days and let you know.....

a green wire...... on the pass side of the engine.

Thanks