Cracked solder joints was mentioned back earlier in this post. Here is a pic of what that looks like for people. I reflowed them, lets see if i can get another 30 years out of it.
Also there are 3 electrolytic capacitors on the PCB. I plan to replace those as well as they can dry up and can cause problems and usually need replacing every 10 to 15 years. Mileage may vary on that as i have see much older ones still going and have see some only a few years old leaking goo. I always try to fix before i buy. Sometimes it works, sometimes not. lol
This is on my '88 C1500 by the way.
