CVO Technical > Twin Cam

Possible Cooling System Failure

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tpb857:
My bike is a 2016 CVO Street.  Usually when I take it for a ride, the fans come on for about 30 seconds or so when I take it for a ride.  No coolant from the overflow.  I rode it both Saturday and Sunday.  Both hot days.  The fans did not come on after pulling it into the garage.  Both days, there was a small puddle of coolant that came from the overflow below the right lower.  I haven't checked the coolant level yet.  I tried the method to test the fans in the service manual for 2016 touring bikes.  There was nothing in the CVO supplement that I could find.  The method is to turn on the ignition switch  but don't start the bike and then twist the throttle at least half way for a period of time.  CVOs don't have the traditional ignition switch, so I tuned the kill switch to on and did not start the bike.  Twisted the throttle over half way and held it there.  Nothing.  I check the fuse and it is good.  First, did I do the test right?  Second, what is the most likely problem?  Water pump?  Thanks.

KGB:
I would check for fault codes, if any set, google the fault, if the fans didn't come on, I would think it's probably a sensor, but I would check for faults first


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tpb857:
OK thanks.  I'll do that today.

HD Street Performance:
If you loose a pump it will throw codes. New pump is a huge improvement over the original.

spence:
Check the fuse 1 more time, I only say that because a few of us were riding through Florida on vacation and my buddy said his bike was over heating.  We pulled over and I checked the fuse for him, it was solid but the fans wouldnt kick on.  Another buddy had a replacement fuse and when I looked at it the metal arc inside the fuse was thicker than the old, basically even though the old was still solid it was thinning.  Put the new fuse in, did the fan test and they came on, he hasnt had a problem since.

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