I have a 2010 chevy malibu 2.4 liter. It has about 170,000 miles. Last year the relay for the cooling fans kept burning out and I couldn’t figure out what it was so I just kept buying the $40 relay, but now the relay almost burns out immediately. I bought new cooling fans. I suppose it’s bad wiring but I barely have time to look at it . It’s been parked for awhile because I couldn’t get this figured out. I figured you might know , thanks!!
trying to melt the fuse box plastic
Your fuse box probably has corrosion. (often caused by misplaced lids) Disassemble and inspect to see how bad it is. If it's just that one socket then polish it up. If damage is extensive, replace the fuse box.
Thank you a lot!! I will check
What is burning out, the relay coil or the relay contacts?
The relay contacts I think, the 4 little prongs that plug it into the fuse box , it has a small black burn mark where the prong that says “30” above it is. and was almost trying to melt the fuse box plastic right where the relay inserts. It’s one of the big gray relays
That suggests the fan is drawing too much current for the relay either due to a a bad connection or worn fan.
I appreciate the help a lot!! A bad connection from the wiring probably? The fan is brand new
Is it an OEM fan or aftermarket that might be pulling more current than the original? Also check for corrosion in the fuse box as @imperator suggested.
I got the fan from AutoZone or O’Reillys that was probably my mistake but even the fan I had before I bought the new one, worked fine and didn’t seem to have any problems but I didn’t know what else to change. I should have mentioned this earlier , not sure if it has anything to do with it but before, when the relay wasn’t burnt out , the compressor would have trouble and it would kick off and on. Freon Was good. Would the ac compressor going bad have anything to do with it?
Different circuit, shouldn't have anything to do with it.