[img]graemlins/hurray.gif[/img] [img]graemlins/beers.gif[/img] WOOOHOOO Got it figured out!
Thanks Mark and dnult and others. I had a cup of coffee and stood next to my car staring at the assembly manual again this morning. Thinking, why does compressor and fan all go out at once? Mark mentioned the low blow switch which I had not played with yet and sure enuf, that white slide button was all the way pushed in and I had to pull it back with pliers. The contacts were also not working on my Ohm meter when I pulled and pushed it. I swapped out the one I had on a donor assembly, (glad I bought that on ebay for $27). Plugged all the wires back in and presto, I have compressor engagement, throttle solenoid, and fan but only the 3 speeds. That low blow switch must have thrown a current and blew out the relay for high speed.
I followed the wiring diagram and the low blow sends power via the tan wire to the low temp plug on the suitcase which makes the green wire connection back to the compressor. When my low blow switch died, the tan was not completing that connection so it all died at once.
Ive ordered a new high speed relay and a new low blow switch cuz I dont know how reliable my donor switch is either. The low blow switches are no longer made and not available from normal catalogs anymore either but I was referred to http://www.obschevy.com/
who had a few of them genuine GM in the box for only $28. When I get back from Denver, the parts will be here and I can re-assemble it all again.
In the photo, the old switch had roller pins of brass that had worn thru the seperator plastic piece and they were mated together and shorting out on both sets of points at the same time. I tried to clean them up and re-install but the plastic seperator is broken or worn off completely and they pins just roll back together again. Thought maybe somebody would like to see what that switch looks like inside.
Thanks again guys. I think I have become a half-a**ed expert on this problem now. Take a cold one out of petty cash on me. [img]graemlins/beers.gif[/img]
[ 07-08-2003, 11:13 AM: Message edited by: click ]