bug eye or bust
Couple days ago I noticed that when I was driving my 02 and came to a stop light, heat on full blast would go cool. Immediately after the light turned green and started driving again the heat was back to normal. This has happened a couple of times since. Heater core going out? I installed a new aluminum koyo radiator about a month (2200 miles) ago and everything went smoothly, burped the system and haven't had any issues since. No overheating or leaking or anything weird, just heat blowing cool.