[GH85Carrera]

On Sunday we went to breakfast as one of our routines. We met another couple for breakfast and enjoyed that. On the way home I noticed the fan switch would only work in MAX and no blower action on lower speeds. Insert profanity here. I thought I fixed that just recently.

So I took out the panel that has the fan controls, it is pretty easy, just four screws for the face-plate, and two more for the fan and AC-heat module. The switch looked fine, and I started scratching my head. I had bought a new electrical socket that connects to the switch becasue the old one was slightly burned from use and not a solid connection. So working in a tight area I cut off the old connector, and soldered in the new connector. No difference, just the high speed only. The lower speeds are all controlled by the three coils in the blower assembly, and they were all fine. The max speed is a direct connection to get most speed from the blower. So I pulled off the relay itself. In the past I had swapped it out thinking it was a problem, but I still had the original relay. I put the original relay back on, and I have all the speeds. So no money spent, just time fixing old connections. 36 year old connections that were likely designed to last 6 years and 100,000 miles and no more just wear out after 36 years and 375,000 miles.

So now I will try to track down a AC Delco relay to have in stock, and be ready for the next failure.

I am one of the weird people that never drive around with the windows down. Either the AC or the heater for most occasions. If the weather is great, just the fresh air blowing, but the fan is always blowing. I may track down a AC Delco fan as well. I have replaced it a couple of times. That is a super easy, 5 minute project, unlike most car.