1700 Voyager Cooling Fans Not Starting - Kawasaki Vulcan Forum : Vulcan Forums
 
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post #1 of 5 (permalink) Old 07-07-2019, 01:09 PM Thread Starter
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1700 Voyager Cooling Fans Not Starting

I've got a 2012 Voyager. One day last week I was riding in town on a moderately warm day when I noticed the temp up higher than it normally would be before the fan kicked in. I happened to look down on the left side where the coolant bottle is under the side cover and noticed a blurp of coolant running onto the ground. I quickly got moving again and got some air moving which lowered the temp. I got her parked at home and found the fan fuse was blown. I have had a manual fan switch installed for a couple seasons now and that fuse was blown also (both are 10 amp). I replaced both fuses and the fan switch now operates both fans normally. The thing is when the bike gets up to the 1st line past half way the fans do not kick in automatically at all. I replaced the regulator box that's attached to the ECU, thinking that was the problem but it still doesn't work. Does anyone know what else there is besides the ECU that could be the problem. I know the coolant temp sensor seems to be showing the proper temp, but I just don't know where to go from here.

Edit: I forgot to mention I took the tank off and coolant level is right to the top

2012 Kawasaki Voyager
Thunder Manufacturing Round Air Kit
Dynojet PCV Fuel Processor
Dynojet AT-300 Autotune Module
Freedom Performance True Dual's (racing Baffles)
Kuryakyn Offset Highway Pegs
Michellin Commander ll's Front & Back
RacnRay's Throttle Grip
iPod Connector
Manual Fan Switch

Last edited by dlars; 07-07-2019 at 01:32 PM. Reason: add missing info
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post #2 of 5 (permalink) Old 07-08-2019, 09:23 PM
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Has this bikeís ECU been flashed by Ivan yet?

2015 Voyager: Ivanized and lovin it!
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post #3 of 5 (permalink) Old 07-08-2019, 11:03 PM Thread Starter
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Quote:
Originally Posted by Skidmark View Post
Has this bike’s ECU been flashed by Ivan yet?
No it hasn't been flashed, its stock and was working fine one day and not the next

2012 Kawasaki Voyager
Thunder Manufacturing Round Air Kit
Dynojet PCV Fuel Processor
Dynojet AT-300 Autotune Module
Freedom Performance True Dual's (racing Baffles)
Kuryakyn Offset Highway Pegs
Michellin Commander ll's Front & Back
RacnRay's Throttle Grip
iPod Connector
Manual Fan Switch
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post #4 of 5 (permalink) Old 07-09-2019, 09:47 AM
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My first thoughts when you start seeing blown fan fuses are only two things:

Check the fan motor resistance for being within spec.

Check for short to ground somewhere along the switched positive supply harness to fan.

As for the coolant temp thermistor, iirc itís a white connector on the side of the coolant thermostat housing. Perhaps check the resistance at the sensor for being within spec at temp.

2015 Voyager: Ivanized and lovin it!
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post #5 of 5 (permalink) Old 07-09-2019, 04:42 PM Thread Starter
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Quote:
Originally Posted by Skidmark View Post
My first thoughts when you start seeing blown fan fuses are only two things:

Check the fan motor resistance for being within spec.

Check for short to ground somewhere along the switched positive supply harness to fan.

As for the coolant temp thermistor, iirc it’s a white connector on the side of the coolant thermostat housing. Perhaps check the resistance at the sensor for being within spec at temp.
Thanks a bunch for the info. I'm going to dig into it when I get a day off.

2012 Kawasaki Voyager
Thunder Manufacturing Round Air Kit
Dynojet PCV Fuel Processor
Dynojet AT-300 Autotune Module
Freedom Performance True Dual's (racing Baffles)
Kuryakyn Offset Highway Pegs
Michellin Commander ll's Front & Back
RacnRay's Throttle Grip
iPod Connector
Manual Fan Switch
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