blowing fuses for radiator fans

L

lowballs

Driver
hey so my problem is that i keep blowing fuses on my radiator fans that i have wired to a switch inside the car.
i have it wired where i have ground control. the switch i have is one of the ones from autozone with the blue led light that lights up when its on (it doesnt work though). when i bought the car it had about 6 different wires all spliced together so we put brand new fresh wire, inline fuse, switch and ground in it. now when we finally attached the wires to the switch, if the diagram is followed it doesnt light up when its powered nor does it turn the fans on, BUT if wired where the ground is the accessory and the accessory is the ground then the fans would flip on but the light wouldnt. so i ran it around town the other night and it worked fine all night, no dead battery, fans flipped on and no blown fuses.

now the morning after when i went to crank the car the battery is dead and the fuse was blown. i know i turned the fan off. however when i was taking my belligerent friends home one of them turned my fans off while i left the car on as i was making a 711 stop. we proceeded to haul ass to his house way out in bfe and i didnt realize how high my temp gauge had spiked till we arrived, flipped the fans on, car cooled down, no problems.

back to it though, after new wiring, every type of fuse up to 30amps have been tried and its blown them all. im all out of ideas. could i have friend the fans themselves (they both still work) causing like a short inside them? or do i need heavier gauge wire?the fans are mishimoto dual fans for an s13. lmk whatcha think
 
chek conecctions again. try getting another switch..but the good ones " and why tha fuck one of ur friend turn ur fan off while ur car was on ? " Lol :chair:
 
Cordobes said:
chek conecctions again. try getting another switch..but the good ones " and why tha fuck one of ur friend turn ur fan off while ur car was on ? " Lol :chair:
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thinks he knows his shit, told me "oh man you dont want that running while the car is just sitting there" after doing like 10000 pulls around town... lets just say the night didnt end until 8am

whats a good switch? cuz this thing obv. fking sucks
 
dang son, graveyard shift huh.. so i just went and bought more fuses and wires. think its possible that im grounding out somewhere?
 
where the hell you bought fuse and wires at 5am ? lol. anyways,, maybe u grounding somewhere thats why i told u to chek all connections again.. mostly in the switch.
 
its grounded to the top of the inner shift boot(?) like you take the center bezel off and theres a metal piece and it goes around the shifter onto the frame holding on the rubber boot... i hope you know what im talking about lol aaaaaand i just jumped through the window at advance down the road.

off topic but when the heck did the site change? i coulda swore it was white an blue before i left lol
 
hahahah. it changed like an hour ago. .. and..about ur ground.. take it out.. make sure there is not paint/rust or dirt. clean the metal part with a sand paper. or find a better ground.
 
lol rust is what its made of, hopefully i found my fix now all i need is daylight >.> i needa drive my car today. i have 2 grounds going to the same place too, that bad?
 
Mr. Steef said:
You need to have it run off of a relay
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im not exactly sure what that means.
so i have to have a fuse AND a relay? should it be like.. the same amps as my switch/fuse?

btw i just went out there, cleaned off the area im grounding it to, made sure theres no pinched/cut/melted/crossed wires and theres not. but yet im still blowing fuses. and i have to wire my switch backwards to make the fan turn on
 
well..then u have a wrong connection somewhere. I never run an amp when i had a switch setup. and never had a problem. right now i have the same fans u have..and i have it connected to the ignition with a inline fuse and is working great.
 
maybe its just the devil.... what size fuse do you have? 30 amps? cuz thats what i gots. maybe i just fried a wire or something, my luck is awesome like that.

can you show me how you have it wired? the guy had it with a switch because racecar and right now this is not a race car its my; get to school in 10 minutes car
 
Last edited:
Go to advance and buy a 30 or 40amp relay and hook it up yes you need a wire from the battery with an inline fuse running to power the relay then a ground from the relay the trigger woukd be the switch abd the last wire goes to your fans

---------- Post added at 02:22 PM ---------- Previous post was at 02:13 PM ----------
2011-09-05141521.jpg

87 = power to the fan
86 = ground
85 = your switch
30 = power from battery
 
ok, went to advance and bought the 30 amp relay, thought i did what i needed to but i didnt... does the relay need a seperate ground and i just continue to run my ground to my switch inside the car or was i supposed to connect it to the ground port on the relay (thats what i did) then on 85 i continued running my ground wire into my car to the switch. gah i need to get my shit together
 
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