DBTKDT Posted May 11, 2012 Report Share Posted May 11, 2012 I'm needing help please. I have an 04 yukon denali with 05+ efans with the dual pin blackbear harness. Had this set up for years and no problems at all. Now for the last few week both myfans have been running on high speed all the time? I'm lost and don't get it at all? what would cause them to run on high speed all the time no matter what the temp is or the ac on? Help Quote Link to comment Share on other sites More sharing options...
cb2big4u Posted May 11, 2012 Report Share Posted May 11, 2012 Is it running at normal operating temp or is it running a little on the hot side? Quote Link to comment Share on other sites More sharing options...
DBTKDT Posted May 11, 2012 Author Report Share Posted May 11, 2012 Runs at perfect temp. I'm lost. Quote Link to comment Share on other sites More sharing options...
Cramer Posted May 11, 2012 Report Share Posted May 11, 2012 One of the relays are bad. Quote Link to comment Share on other sites More sharing options...
idahoBLKss Posted May 11, 2012 Report Share Posted May 11, 2012 make sure all of the pins in the relays are pushed all the way in on the underside, i had a problem with my blackbear harness also and one of the pins wiggled its way out some how but mine weren't coming on. Quote Link to comment Share on other sites More sharing options...
DBTKDT Posted May 11, 2012 Author Report Share Posted May 11, 2012 Mine did that too...................it is hit and miss. I did push in the wires and I thought that was it then it was running crazy again and now its fine? I'm going crazy! Maybe relay? When they are running full blast my volts are suffering, and I have a145 amp alt. Hate to see that. Quote Link to comment Share on other sites More sharing options...
DBTKDT Posted May 13, 2012 Author Report Share Posted May 13, 2012 i switched the relays and still does goofy things? I dont get it? I feel like I'm going crazy.....................lets just say there is nothing wrong with the harness, what else could i trouble shoot? All the terminals are pushed in too................ Quote Link to comment Share on other sites More sharing options...
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