So I'm having issues with my 1995 honda civic coupe. The radiator won't turn on at all. I put leads on it directly from the battery and it turns on. I shorted the ect switch to see if my relay was bad, it turns on. So I replaced the coolant switch, and the sensor for temperature, the one under the distributor. So I'm not sure what's wrong. Could anybody help me? I really appreciate it.

 

rad fan switch is in the thermostat housing.

did you check the fuses and the fan relay?

 

I checked the fan relay, and it works when I short it. I'm not sure if there are other fuses I should be checking. Would flushing the radiator help any? Both of the hoses going from the radiator to the engine are hot as hell when the car gets going.

 

feel the radiator from left to right if it's cold on on side and hot on the other then it's plugged and needs replacement very unlikely a flush will work.

 

It's actually all hot. I'm not sure on what to do next. I did all of the testing, but nothing is making it work.

 

Replace the relay?

 

Bleed the cooling system.

Bleeding the cooling system may take 20-30 minutes.

1) Park the car on an inclined driveway with the front end higher than the rear.

2) Push the dash heater lever/**** to MAX heat.

3) Follow the directions in the diagram below (hint: the bleed bolt is located where the upper radiator hose connects to the engine):

 

I agree with this too.

 

Air in my system was what my problem was as well.

 

Awesome, I'm going to do that right away. Thank you guys.

 

So I flushed the radiator system, and still nothing. Am I running out of options? The radiator hoses are still hot as hell.

 

Flush does not equal bleed. They are different.

 

Sorry, wrong choice of word there. I bled the system, but still nothing.

 

Any gas bubbles seen in the coolant in the radiator or reservoir during the bleed?

 

None, I was waiting for the bubbles, but it just came out, and that was it.

 

What just came out?

Are you experiencing any engine overheating?

 

Just fluid came out, and I'm experiencing high tempatures but no radiator kick in.

 

Sounds like there's still air trapped in the system. Is the heater valve on the firewall wide open?

 

unplug the Fan switch connector and use a jumper wire on the two pins of the connector and see if the fan turns on if not then ether the relay if toast or your missing the ground at the connector.

 

Well the relay is fine, and the fan turns on, I'm guessing the radiator will kick in when necessary

 

get a IR temp gun there cheap now and it will tell you how hot it is getting.

you can also check the heater hoses. make sure thay are routed correctly if not you will feed colder coolant from the heater core past the fan switch instead of hot coolant from the head buddies Honda never used the fan tell we corrected the misrouted hoses