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belue · Aug 27, 2009, 05:45 PM

I just changed my radiator because it blew up.
I got a big long crack on the top side of it. Now my car wants to overheat when I crank it.
My fan does not come on.

How do I figure out what the problem is and not spend a fortune trying to fix it?
I know it is probably the relay, or fan motor?
Also, how do I know if I need to change the thermostat?

TxGreaseMonkey · Aug 27, 2009, 06:04 PM

See if this helps:

https://www.askmehelpdesk.com/cars-t...ml#post1642158

belue · Aug 27, 2009, 08:35 PM

Originally Posted by TxGreaseMonkey

See if this helps:

https://www.askmehelpdesk.com/cars-t...ml#post1642158

Thanks, I will try to get on some of this stuff.

Can you tell me how to disconnect the relays so I can swap them out to test and see if that might be the problem or not.
I know how to do it and all I just need to know how to get the relays off.

There is wiring coming into the bottom of them and I can't figure out how to swap them with the wiring in the bottom, cause it seems like it does not remove from the bottom of the relay(making them stationary.

TxGreaseMonkey · Aug 28, 2009, 06:55 AM

They make rubber-tipped pliers to grab onto relays. An alternative is to size up the situation and gently pry them out with a small screwdriver. After removing the relay, try cleaning the contacts with abrasive cloth and then apply a light coating of dielectric grease. Disconnect the negative battery cable, before trying to remove relays.

belue · Aug 28, 2009, 09:33 PM

Originally Posted by TxGreaseMonkey

They make rubber-tipped pliers to grab onto relays. An alternative is to size up the situation and gently pry them out with a small screwdriver. After removing the relay, try cleaning the contacts with abrasive cloth and then apply a light coating of dielectric grease. Disconnect the negative battery cable, before trying to remove relays.

Thanks for your help. I got it fixed.
First I checked the relay, it was good.

Then I checked the fan motor it was also good. So then I figured it had to be the thermo sensor.
But, I did not replace that, I just run a toggle switch for the fan inside the car.

Then I thought I had it, but it started running hot very fast, so I figured the thermostat was stuck. So I got one and put it in and now everything is all good. Thanks again.