Help with cooling and over heating

[blueworr19]

Hey i have a 93 240 that has a sr20det in it basicly my flex a lite fans arent coming on because the relay is frying..the 4 pronged harness keeps melting and the relay pluged into it blow...also i know the fans work because i tested them but they make a werid noise like there having a hard time spinning but there is nothing in the way of the fans to make the moter work harder.

only thing i can think of is my grounds are bad in the car...or the relay harness is no good and i need to get a new one and cut and splice

Anyone have any idea where i can get a new relay harness?

thanks for any help james

[the converted]

My first question would be do you have a fuse on the wires? Sounds like you have a pretty good fire hazard on your hands there. It also does sound like the fans are bad. I'm not sure how much power they are supposed to draw, but if they are melting the relay socket, then that's a bad thing. Did you buy the fans new or used? If it was used you may have been scammed.

[blueworr19]

hey, im not 100% sure abour the fuse on the wires were would it be? and i didnt build this car i bought it with the work done but who ever did it sucks because im going over everythig and having to fix it. and i dont think the fans where used but i dont understand why there melting relays.

any idea where i can get a new relay harness so i can elimante that as a problem?

[shift_SRDETuser]

the

hey, im not 100% sure abour the fuse on the wires were would it be? and i didnt build this car i bought it with the work done but who ever did it sucks because im going over everythig and having to fix it. and i dont think the fans where used but i dont understand why there melting relays.

any idea where i can get a new relay harness so i can elimante that as a problem?

they melt relays because the amp is wrong for the relay or the voltage is too high for the wires. I used a DIF controller on mine until I ditched it and made myself a switch in the cabin that I turn on or off. The only thing is you have to make sure your fuse is enough to carry the load of the fans. I.e. if you fans draw 30 amps make sure you have a 30 amp fuse in relay or they will melt wires and blow fuses. Like mine are 10 amp fans each and they draw 10 so I have two fans so the total amp draw is 20 amps. I have a 30 amp fuse on the power and even have one on the negative just in case I get some crazy spike or something. It is better to have a larger fuse than you actually need that way they tend to last longer.... good luck