95 civic ex radiator fan problem
11-17-2002, 07:34 PM
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95 civic ex radiator fan problem
my friends 95 civic ex radiator fan stopped running - i saw one electrical connector for the fan near the coolant reservoir.
are there any other connectors to the fan? how would i check this? what could be the problem?
also, on the fan motor, on the bottomside of the motor, there is a hose or pipe with nothing attached to it, and it seems like it was cut. know anything about this?
thanks
p.s. - does anyone have a manual for this car online or something?
are there any other connectors to the fan? how would i check this? what could be the problem?
also, on the fan motor, on the bottomside of the motor, there is a hose or pipe with nothing attached to it, and it seems like it was cut. know anything about this?
thanks
p.s. - does anyone have a manual for this car online or something?
11-17-2002, 08:27 PM
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Re: 95 civic ex radiator fan problem (rasta420)
try to unplug the connector to the fan and wire it directly. if it does work wired directly to the battery than its probably the fan relay in the underhood fuse box. or just try swaping relays with another one. most likely its just the relay
11-17-2002, 08:55 PM
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Re: 95 civic ex radiator fan problem (stkd16z6)
I just had this exact same problem tonight... in my thread in the tech forum, ThugLife52 suggested that if there isn't enough water in the radiator, the fan won't come on. Not sure if this is true or not, but definately check it and put some in if it's low... also, you should have some in your overflow tank as well.
It's not likely that the fan has gone bad, but you can check it by unplugging the connector near the top of the radiator and running a wire from one side to the positive on the battery and a wire from the other side to a ground. If the fan starts, then you're good there.
Next thing you should check is the fuse in the fuse box on the bottom of the dash by the driver's side door. There's a 7.5amp fuse in there for the cooling fan, make sure that's not blown.
If everything above checks out, next thing to check is the fan relay in the main fuse box under the hood. There is a row of three relays under the cover. Two look similar, the third one is a little different (more square instead of elongated). This one will be closer to the firewall, and it's the fan relay. To test it, unplug it from it's socket, and run a wire to a ground on your chassis to one of the SILVER prongs on the relay. Next, connect a wire to the positive on your battery terminal, then lightly touch the other SILVER terminal on the relay. If you hear a little click from the relay, then it's good.
If you still check out good, then the next place to check would be the thermosensor switch right next to the thermostat on the block. It's possible that this switch went bad or something... I don't have any details on this, as I never got that far in testing. It seems my problem was related to the first suggestion... low coolant.
It's not likely that the fan has gone bad, but you can check it by unplugging the connector near the top of the radiator and running a wire from one side to the positive on the battery and a wire from the other side to a ground. If the fan starts, then you're good there.
Next thing you should check is the fuse in the fuse box on the bottom of the dash by the driver's side door. There's a 7.5amp fuse in there for the cooling fan, make sure that's not blown.
If everything above checks out, next thing to check is the fan relay in the main fuse box under the hood. There is a row of three relays under the cover. Two look similar, the third one is a little different (more square instead of elongated). This one will be closer to the firewall, and it's the fan relay. To test it, unplug it from it's socket, and run a wire to a ground on your chassis to one of the SILVER prongs on the relay. Next, connect a wire to the positive on your battery terminal, then lightly touch the other SILVER terminal on the relay. If you hear a little click from the relay, then it's good.
If you still check out good, then the next place to check would be the thermosensor switch right next to the thermostat on the block. It's possible that this switch went bad or something... I don't have any details on this, as I never got that far in testing. It seems my problem was related to the first suggestion... low coolant.
11-18-2002, 11:30 AM
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Re: 95 civic ex radiator fan problem (rasta420)
if those 2 things didn't solve your problem. try changing your thermostat. and see wat happens from there. was your friends car over heating? and did he lose radiator fluid?
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11-18-2002, 01:11 PM
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Re: 95 civic ex radiator fan problem (SCo77iDAwG)
if those 2 things didn't solve your problem. try changing your thermostat. and see wat happens from there. was your friends car over heating? and did he lose radiator fluid?
thanks though
11-19-2002, 02:39 PM
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Re: 95 civic ex radiator fan problem (SCo77iDAwG)
if those 2 things didn't solve your problem. try changing your thermostat. and see wat happens from there. was your friends car over heating? and did he lose radiator fluid?
thanks though
11-19-2002, 05:35 PM
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Re: 95 civic ex radiator fan problem (rasta420)
i was taking the fan apart today to check the radiator out, and found out that the radiator was leaking. but anyway, i tried to flush/refill the coolant to see if that would do anything, but it didnt.
could the leaking radiator be the reason for the fan not working?
secondly, i wanted to test the fan out by giving it a power source, but didnt have any wiring, so i came up with this idea -
i noticed the connector on the A/C fan seems to be the same as the one on the radiator fan - could i connect the A/C fan connector to the radiator fan connector, turn the A/C on and see if the fan works?
thanks
could the leaking radiator be the reason for the fan not working?
secondly, i wanted to test the fan out by giving it a power source, but didnt have any wiring, so i came up with this idea -
i noticed the connector on the A/C fan seems to be the same as the one on the radiator fan - could i connect the A/C fan connector to the radiator fan connector, turn the A/C on and see if the fan works?
thanks
11-20-2002, 08:05 AM
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Re: 95 civic ex radiator fan problem (rasta420)
There is a sensor called the ECT (thermo switch or whatever its called) which is located on the water outlet were the thermostat is located. If your fan tested okay while jumping the wires directly to the battery then this ECT sensor would be your problem. I had one go out on me before and its no biggie to swap out.
[Modified by 96jdmcoupe, 5:07 PM 11/20/2002]
[Modified by 96jdmcoupe, 5:07 PM 11/20/2002]
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