Hi all, new to the forum and want to express my appreciation to those who made this site possible, lots of work, etc. Got a friend's 05 4x4 5.7 durango here at the house and the condenser fan isn't working and I haven't a clue why. I work on a lot of cars, and most of the time when there are two wires to this fan I can check for 12V at the connector, then ohm the motor and it is very obvious if it is the fan or not. This sucker has three wires, so I haven't clue how to hotwire the fan to see if it is good, but I suspect it is- because I have no voltage at the relays. There are two, one for high and low speed. I have checked all the fuses, haven't found anything blown yet, and the a/c is working perfectly at start up and if you keep cold water running over the condenser to keep it cooled off. I know this is PCM controlled, so does anyone know what to try next? Any test to perform to help diagnose this? My friend wants to start throwing parts at it, but I'd rather fix it right without tossing money in the pooper. Thanks in advance, and if I posted in the wrong area please forgive me and move it to the proper one, thanks!

 

Welcome to DF
Check the fuses in the PDC i think its fuse 48 or 49 for the a/c fan. If its blown, replace it. If it continues to blow replace the fan assy.

 

Thanks for the reply, we'll give that a shot.

 

You were right, blown fuse. Not sure what the number was, but it was listed as "40/50" and was very close to the relays. Thanks a million...