Well I hooked my buddies snap on scanner to the my car and turned the fans on thru it proving the fans the relays and fuses worked. I also check the temp sensor and it was telling the computer to turn the fans on. So the GM trouble shoot manual said it was the ECM. Replaced the ECM and it worked fine. Must have been a bad solid state relay in the ECM board.Originally Posted by pabstman
Having the correct diagnoistic equipment can sure cut down on the repair time. Other wise it would have took a while to figure it out.
AC issue was a bad clutch on the compressor. I cut a plug off a car in the junk yard and wire up and jumped the AC direct to the battery and it would not engage. replaced the compressor and fixed the issue.
