Originally Posted by amc49
If it seems to get somewhat better after overheating for a bit then high speed fan is kicking in after low did not when it should've. A/C not coming on says again low speed problem. Resistor or low speed relay problem. Resistor check is easy, if not melted then it's OK, relay harder, can stick occasionally and still test good. Best way there is buy a new one, not expensive.
where is that resistor located. I've been having the same problem except i took the connector off to test the ground and it was fine then plugged it back in and worked. drove a bit and then sat and idled for a while again and it started to overheat.