cooling fan
Thread Starter
Joined: Sep 2007
Posts: 33
cooling fan
I CREATED A THRED A WEEK AGO ABOUT MY 1990 HONDA CIVIC WAGON OVER HEATING AND WAS INFORMED TO CHECK MY FAN. WELL I DI AND IT IS NOT WORKING. SO WHAT SHOULD I CHECK? DOES IT HAVE A FUSE OR DO I NEED TO REPLACE THE FAN? IF I DO HOW IS IT DONE? CAN I DO IT MYSELF OR DO I HAVE TO TAKE IT SOMEWHERE? THANK YOU FOR ALL YOUR SUPPORT IT IS GREATLY APPRECIAYED. I DONT HAVE ALOT OF MONEY SO THIS IS VERY HELPFUL. I WORK FOR SUPER BIKE SUPPLY AND WE HAVE A CBR1000RR FORUM AND THATS HOW I LEARNED HOW AWSOME THESE FORUMS CAN BE! THANX GUYS!!!
Joined: Sep 2007
Posts: 7
From:
RE: cooling fan
I'm not completely familiar with these cars yet but if its an electric fan and its not working try to find a relay or a fuse that controls the cooling fan and replace them. If the replacement fuse or relay doesn't work that usually neans you need a new fan and im not too sure on the process on that particular vehicle.
Recognized HCF Member
Joined: Jun 2007
Posts: 10,023
RE: cooling fan
There is a fuse, a relay, a temperature sensor, and of course the fan itself. The fuse is I think in the underhood fuse box on the right strut tower near the battery. So go ahead and check that but usually the problem is something else.
If the car has operable air conditioning, both fans should run when you turn it on. If they do that, the problem is almost certainly the engine temperature sensor. This sensor is located on the back of the engine block near the oil filter, but more toward the timing belt end. It is about 1.5 inches in diamter and has two wires. Unplug the wires from the sensor and jumper the two wires together. The fan(s) should now start immediately when you turn the key on even if the engine is cold. You can drive like that for a time until you can replace the sensor, but you are of course wearing the fan out prematurely.
If the fan doesn't run with the sensor jumped and the key on, check if it is receiving voltage. If so then the motor is bad. Replacement is easy, but that part is expensive. Pull the plug, remove the two bolts at the top and lift out the fan and shroud assembly. If the car has air conditioning, you may need to unbolt the line mounts and push the lines back to get clearance. No need to disconnect them though.
Finally the relay is I think on the right fender. If the fuse and sensor are OK but no voltage to the fan it should be that.
If the car has operable air conditioning, both fans should run when you turn it on. If they do that, the problem is almost certainly the engine temperature sensor. This sensor is located on the back of the engine block near the oil filter, but more toward the timing belt end. It is about 1.5 inches in diamter and has two wires. Unplug the wires from the sensor and jumper the two wires together. The fan(s) should now start immediately when you turn the key on even if the engine is cold. You can drive like that for a time until you can replace the sensor, but you are of course wearing the fan out prematurely.
If the fan doesn't run with the sensor jumped and the key on, check if it is receiving voltage. If so then the motor is bad. Replacement is easy, but that part is expensive. Pull the plug, remove the two bolts at the top and lift out the fan and shroud assembly. If the car has air conditioning, you may need to unbolt the line mounts and push the lines back to get clearance. No need to disconnect them though.
Finally the relay is I think on the right fender. If the fuse and sensor are OK but no voltage to the fan it should be that.
Thread
Thread Starter
Forum
Replies
Last Post
DashRendar77us
Mechanical Problems & Technical Chat
3
May 25, 2006 07:29 PM
