One of the radiator fans stopped spinning causing temperature gauge to go to H (HOT) while idling or driving locally. However, while driving on the highway, the temp stays normal. 2 Days later the SES light appeared. Can a broken fan cause the SES light to turn on or did something else break while driving with one fan?

 

you should check the fan before replacing it. run two wires from the battery, one from the battery to plus side of the fan, other from battery to negative of fan. i cant imagine the fan doesnt work anymore. maybe a relay is fried

 

check the fusible link in the fuse box on drivers side. prolly burned out the fuse.

 

Which fuse should I look 4?

 

A blown one.

 

Meanwhile, I went to check on my car and I found the gas cap open. Can that cause the "Service Engine Soon" light to turn on? If yes, should the car be driven for while for the light to disappear?

 

Its the gas cap.The light should turn itself off after you drive it a while or go to the autoparts place to scan and get it turned off..Get the fan fixed.

 

You were right, it was the gas cap. However, one of the fans still doesn't spin. I looked but could not find any fuse for the fans. A mechanic is saying it is my thermostat. What do you think?

 

do like i said above to be sure the fan motor still works

 

If not, check the relay,they should both come on with the ac, only one comes on without the ac when demand calls for it, they will both come on if its really freaking hot out to, but most cases its just one unless the ac is on.

 

Das, I'm definitely taking your advice about the fan motor. Meanwhie I was looking at the fuses, I couldn't find one for the fan(s).
I will also appreciate if anyone has a pic of where the thermostat is located...Thats also something to be checked but I don't know where it is located.

Professor, I'll look at the relay tomorrow. Even when AC is on, only one fan is spinning causing the anti freeze to boil. The temperature gauge goes to H (HOT). One fan was spinning slowly and then it eventually died. Is that the relay, motor, or fuse?

 

look at the SMJ in the FSM, you should find a fuse for it there, if not then look through the other boxes until you find one, then go out to the car and check it.

 

look at relays E27, E28 and E31 in the box right behind the driver side headlight, between the headlight and battery. then look on the diagram in the drivers fuse box for the fuse (im sure you already did that and didnt find one, so maybe its not there).

 

Das, you have been really helpful...
I looked on the diagram looking for fan fuse or something similar and couldn't find it. I will look at the relays just like you suggested tomorrow since its dark here righ now in N.Y.
Thanks again.

 

i looked and didnt see any fuses either so

 

A Nissan techncian looked at my car and is saying that one of the fans is gone south. Nissan quoted me $350 for the entire radiator fan assembly. Are there aftermarkets?

 

google OEM nissan parts

 

or call Dave B (youll have to search for his #)

 

Das, I just found the entire assembly for $150.00 on the Internet. .I think you may be right about the motor.

Thanks again.