99 Burb K2500 4wd/7.4 Vortec Ac Fan Relay?

sjg56k · July 5, 2010

First post here. Forum looks very helpful. I cannot seem to locate the ac condenser fan relay on my Burb. Fan works when I jump power to it but does not come on under any situation; so I thought I would check the fan relay, but cannot locate it. Any help would be appreciated. Thanks

sjg56k · July 8, 2010

Update on relay. Called dealer and they thought maybe it was in the relay center under the hood which it is not. They gave me a part number for the relay (3601) but it was not there nor are there any other open sockets for any relay. Read some service bulletin about this aux cooling fan being a dealer add on in case of warm ac outlet air, that may explain why the schematics don't show this wiring setup. Still, I cannot locate the relay locale. Looking for a expert here.

sjg56k · July 11, 2010

Okay My Bad!. I found the relay and it was on the side of the relay box, I thought it was for my abs cause tyhe harness went over that way. So I replaced the relay and guess what? Still fan did not turn on. So Cheched high pressure side cotout switch and when I jumpedd the 2 pins, the fan kicked on!! So now I got a pressure switch on order and pretty sure fan will work correctly then. Hope this helps someone someday!! Bye.