My car is a 2000 Chevy Malibu.
Back in december I started having issues with my heat. The blower fan was working intermitantly. This kinda sucked as I live in MA. I found hitting the insulation between the passenger foot area and the fan helped persuade it to work more often then not. Eventualy doing this didn’t help as much so I got motivated enough to work out in the cold to try and fix it. I’m 6’1" standing on my head to get to it wasn’t much fun either.
I pulled the fan out and found an overly complex plug for conecting 2 wires to the fan. This by turning the fan on and off and testing with a volt meter I made a pretty educated guess the fault was do to bad wiring in the plug. I made a few phone calls and to the parts places and didn’t get far in finding the same silly plug. So I just cut the plug out and crimped in a couple wire thingies that coul slide over the motor tabs. Playing with it a bit I found I wasn’t getting the high ranges. I figured some heat is better then none and was a bit cold so that was that till spring.
When I was putting the motor back in I noticed a little circuit board up in where the fan is goes. It had a small scorch mark on it. That explained the range issue to me.
A week or so after the operation I lost my heat completely again. I kinda gave up on fixing the problem and just finished off the freazing winter. The car was a little warmer inside if I went down the highway.
Well by the time spring hit I didn’t really need heat. Why not procratinate more?
Now its summer and I rather liked having my AC so today I decided to fix the problem. It was an issue trying to identify and locate a replacement curcuit board thing. It is a resistor. Got the part. Stood back on my head took everything apart again and swapped out the curcuit board. Tested my fan and that works fine. I touched the resistor in this process and found it was really hot. Not like melt stuff around it hot but enough to burn your hand a little.
The resistor is located inside the fan area for a reason I’m guessing. Is it because it would normally get hot like that? Should I be concerned its just going to get toasted again and check into a wiring issue causing the hotness?