I replaced my fan relay maybe 3 months ago. I have my fan rigged so it stays on with a toggle switch, so I leave it on most of the time. I noticed it didn't come on again. I wiggled the relay located on the fire wall, and it started to work again, but I feel like it's gonna fly south again. Any input would be appreciated.

 

here are some ideas,

fan drawing too much power for the relay
relay is not weather sealed
engine bay heat damaging the relay

 

I notice the recepticle the relay plugs into looked heat damaged. When I installed the new one, I did not weather seal it. How would I go about doing this?

 

 

It just sits on the fire wall. I'm sure driving it through the rain is gonna get some moisture on it but not by anything wrong.

 

I replaced the relay plug, and it was working for a time, and the relay burned out again. I did some asking around, and I was told the fan motor is probably the culprit.

 

That or a bad ground

 

How would I know if the ground is bad, or the motor is bad? I am very close to buying a fan and motor.

 

Check the ground point for corrosion and/or do a continuity test from the ground leg of the fan connector to a good ground. High resistance means bad ground

 

I just see two wires coming off the fan, and they go into the wiring harness

 

One is black with a red stripe. This is 12v from the relay

Other is solid black, ground, test this one

While you're at it test the blk/red wire too from the connector to the relay socket to rule out a short

If both check out under 2 ohms, the relay and/or fan is bad

 

After cleaning off the wires, I found the red/black /black wires. I'll check the ground wire at the leg I assume this means right at the motor. and ground it to the car.

A foot note to this discussion... When I changed the socket, I noticed the green wire was tampered with. I'm thinking the previous owner grounded the temp sensor to have the fan constantly running. I did the same thing last year, only down the wire from this. I have a toggle switch connected to it, and I've been running the fan all the time so it didn't heat up to 225. Maybe the fan motor has been working too hard.

 

Very likely, it's not meant for constant use

 

I just don't wanna see my engine heat up past 180. Heat causes friction, and wear.

 

When you're moving above say 20mph, the fan is no longer required to keep the engine cool. Enough air flows through it

Ive had to drive around town with a dead fan before, its nerve racking, but doable

 

Yeah the air dam starts when your moving, but I noticed the temp gauge was warmer than when I had the fan on also. Summer at 25-30 it looked like it was at about 195 degrees. So that's why I left the fan on. W/ fan on it cooled to 180. I'm gonna check to see if the fan needs to be replaced, and go from there.

 

Does your car have the older style relays?I upgraded all my relays to the newer style(weather pack) used in the 88-up models.Havent had any realy issues since.

 

I checked both wires, and they are well under 2 olms. Must be the fan motor.

 

The Camaro I am working with is a 92. I am assuming it is the newer style.

 

It is, 91-92s used only the newer oval relays in the engine bay

 

Are these the relays you switched to?