Sr20Bluebird
12-03-2011, 08:14 PM
just some info before i start
91 240 coupe auto turned 5 speed
Installed Altima cooling fans about 3 months ago with no problems.
One fan cools the engine while the other is used for a/c.
The fan that was wired up for a/c used the cars oem wiring. In other words the positive and negative wires from the original a/c fan were just made longer and spliced into the altima a/c fan.
Ok so i was working on my 240 today because i had a leak in my upper radiator hose. So when i finished fixing the hose i added some more coolant then turn the car on to make sure there were no more leaks. As im waiting i hear a fan turn on. So i think to myself "sounds normal". But i happen to look and i notice the a/c fan is turning.
So i go to check if the a/c is on come to find out its turned off. So i go back and the fan is still turning. I unplug the fan and it turns off. Couple of mins go by as im trying to think of what could have happened when the cooling fan turns on. So the fan controller seems to working properly, i go back, plug in the a/c fan and its still on.
I look for the replay for the a/c fan and find it. i swap it out with another identical replay and install it and have the same outcome. I take my multi meter out and check continuity between the coil spades #1 and #2( i call it coil, but its the little spring looking guy on the drawn on the relay) and theres continuity so then i check the switch portion of the relay #3 and #5 and theres no continuity which is normal ( as far as i know) . Then i check the power going into the relay, from the fuse box. On connections #1 and #2 i get about 13.4 dc volts. #3 and #5 i get 14.2 dc volts switch i found odd. But im not a electrician so i dunno.
This is what i've check so far. Anyone else ever have this same issue?
91 240 coupe auto turned 5 speed
Installed Altima cooling fans about 3 months ago with no problems.
One fan cools the engine while the other is used for a/c.
The fan that was wired up for a/c used the cars oem wiring. In other words the positive and negative wires from the original a/c fan were just made longer and spliced into the altima a/c fan.
Ok so i was working on my 240 today because i had a leak in my upper radiator hose. So when i finished fixing the hose i added some more coolant then turn the car on to make sure there were no more leaks. As im waiting i hear a fan turn on. So i think to myself "sounds normal". But i happen to look and i notice the a/c fan is turning.
So i go to check if the a/c is on come to find out its turned off. So i go back and the fan is still turning. I unplug the fan and it turns off. Couple of mins go by as im trying to think of what could have happened when the cooling fan turns on. So the fan controller seems to working properly, i go back, plug in the a/c fan and its still on.
I look for the replay for the a/c fan and find it. i swap it out with another identical replay and install it and have the same outcome. I take my multi meter out and check continuity between the coil spades #1 and #2( i call it coil, but its the little spring looking guy on the drawn on the relay) and theres continuity so then i check the switch portion of the relay #3 and #5 and theres no continuity which is normal ( as far as i know) . Then i check the power going into the relay, from the fuse box. On connections #1 and #2 i get about 13.4 dc volts. #3 and #5 i get 14.2 dc volts switch i found odd. But im not a electrician so i dunno.
This is what i've check so far. Anyone else ever have this same issue?