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emersonsc

Re: Radiator fan quit coming on- common problem??
« Reply #15 on: November 10, 2015, 07:36:31 AM »
Excellent information guys, thanks for posting! 

Unfortunately in my case it does not look like it is as simple as the sensor.  I'll probably replace it anyway though since it sounds like they are prone to failure on these machines. 

I found the sensor and jumped the connection with a wire and started the machine and the fan DID NOT come on.  Tried it a couple times while making sure my jump was making good contact.  Now I'm back to thinking the relay is bad, or else maybe the fan motor itself?

The machine is up north at the cabin, and the dealer is down here in the city, which makes things a bit more complicated.  I was still able to use it to get out to my tree stand and back throughout the long weekend (it's our rifle deer season right now).  In the cooler weather it will not go beyond 3 bars on the temp gauge under easy/normal driving conditions so I'm not terribly worried, and I'm hoping I can at least use the machine through my last weekend of the deer season.  It only peed out an ounce or two of coolant from the overflow the one time when I was riding slower for extended time (due to not as much air through the radiator) a few days ago when temps were a bit warmer.  The original factory filled coolant is still just a little above the bottom line in the reservoir.  So until fixed there will be no more put-putting at 10-15mph trail hunting for grouse...  I'm going back up next weekend because we still have 2 tags to fill (I shot mine on opening day ;D)  Then my plan is/was to bring it back to the city and get the rear tires replaced under warranty, get the first oil change since the break-in is complete (it has about 300 miles on it now), and now I have to add the cooling problem to the list.  I'm sure it will be more than just a few days at the dealer so I wanted to bring it back down after I'm done deer hunting.  I'm not going back up for the third and final weekend of the season so this works best.

I know paying the dealer to do the oil change probably sounds foolish, but I thought it might best to have them do at least the first one.  I have learned that doing oil changes on this machine will really make me miss my old King Quad 700!

I am interested to see if any of you guys who are more experienced with these machines have any other thoughts/suggestions/experiences with cooling system issues.  Anything else I should look at?  I will definitely post here what the dealer determines once I bring it in and get it fixed, unless I am able to figure it out beforehand, but in either case I'll make sure to report my results in hopes it could benefit others here. 

Thanks again for the advice and suggestions.

if you jumped and found it still isnt running you have two possible issues. A dead fan motor, or bad fuse/relay. Check to see if you have power headed down there. Get yourself a test light or multimeter and make sure (while the unit is running) that theres power. If so, dead fan motor.

Things happen. Dont let it get you worried or down. Doesnt matter what brand you have, they break, and stuff goes wrong. Better it does NOW during the warranty than later on. Also remember this, your CFMoto came from the factory, with a better warranty then a Polaris RZR (yes, they do come with a 5 year, but thats additional, and you pay for it. the standard warranty is 6mo).

I've worked on Polaris RZR and Rangers with under 100 miles on them plenty of times with bad wheel bearings, dead radiator fans, rotted intake manifolds (they love using a rubber coated plastic manifold), ive replaced entire ignition systems... They ALL have issues.

Dont fret. And in all honesty, having the dealer do you first oil change is good anyway. Gives them a chance to look it over, you a chance to have any issues or questions you have taken care of, and its documented that you are actually taking care of the machine for warranty purposes.

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Offline st468

Re: Radiator fan quit coming on- common problem??
« Reply #16 on: November 10, 2015, 11:32:49 AM »
Thanks Emersonsc. 

I'm definitely on the same page regarding CFMoto- at least so far.  New machine, I'm not too worried about a few minor issues in the beginning.  I'm otherwise very impressed with the initial quality, fit and finish, engine power, etc.  These things seem to be so much more complicated than the typical 4-Wheeler, so it's no surprise.  And I'm not surprised to hear what you say about the latest Polaris machines.  I've never been a fan or any of their 4-wheeled vehicles, nor any of their sleds unless they have a Fuji motor.  I really do hear about lots of problems people have with them.  I actually briefly owned a new 2004 700 Sportsman- it was a piece of junk, long story short- I took a bath on it when I (luckily) got rid of it.  Replaced with a King Quad 700, I never had a single issue with the Suzuki except for the "gremlin".  Needed a new battery every year.  If I remembered to religiously keep it on a battery maintainer, I could get 2 seasons out of a battery.  Whether or not I had the VDI Copperhead ECU in the machine, the "gremlin" remained.

Even though I will be bringing my CFMoto home for service after next weekend, I do still plan to bring up my tester so I can see if the fan motor is getting power.  My gut tells me it's the relay behind the glovebox though.  I'll leave it to the dealer to tear the machine apart that far, as it is a pain to get to the relays.  I'll definitely report here what I find out.

Thanks again to everyone here who responded with suggestions and advice!

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emersonsc

Re: Radiator fan quit coming on- common problem??
« Reply #17 on: November 10, 2015, 05:54:15 PM »
you jinxed me...

my switch went out today.

BTW, the switch completes a ground, so the test light or multi meter wont help. youll need to make a jumper and jump the two contacts together inside the plug. I did that and found my fan still runs strong.

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Offline st468

Re: Radiator fan quit coming on- common problem??
« Reply #18 on: November 10, 2015, 06:44:36 PM »
Emersonsc- Which switch on yours went out?  The relay behind the glove box, or the temp sensor switch on the radiator? 

The way I checked the one at the radiator was to simply jump (connect a wire) between the two contacts in the plug while it was unplugged from the sensor while the engine was running.  I assume this should activate the fan if the machine is on and running?  There are instructions in the shop manual about jumping the relay which is located under the dash/behind the glove box to test it.  I just didn't want to tear the machine apart that much while I was up north for deer hunting, and with only limited tools on hand.  I would have had to remove the windshield, take the whole hood off, glove box off, etc. just to access the relay.  It would have cost me precious up north hunting hours.

Also there's the fuse in the little fuse compartment by the steering column, that was the first thing I checked.  It looked good but I replaced it anyway, but to no avail.

My next idea was to try jumping the switch at the radiator while the machine is running and at the same time check with the tester if there's power to the fan.  My gut tells me there will not be power there.  It has to be that damn relay...

Then the next question that comes to mind is regarding the relay- if that's what the problem really is.  It is a specialized one which is only available from CFMoto, or is it something that can be purchased online or at an auto parts store?  Perhaps a part made by a more reliable/higher quality manufacturer?  I'd feel better in the summer months with a better quality replacement relay.  It is easy to get to the fuse or sensor on the radiator, but what happens if the relay goes bad when you are out riding 40 miles from civilization?  You have to tear half the machine apart to get to it!

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Offline NMKawierider

Re: Radiator fan quit coming on- common problem??
« Reply #19 on: November 10, 2015, 07:28:10 PM »
These relays are all fairly simple and work about the same. Quality it appears may be another thing. If it is the relay, I would consider one of these. I have used them on my ATVs and never has one fail..yet.

http://www.amazon.com/Parts-Express-Waterproof-Relay-Bracket/dp/B000PHLQJW/ref=sr_1_2?ie=UTF8&qid=1447204893&sr=8-2&keywords=12+volt+relay&pebp=1447204967811&perid=1FJVNHM1ETMXWA8G26DK
2015 Z Force 800 (53") EPS -
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор (Rodin's) Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage | 9.7" GPS | Bandit Springs Rear & Gen-3 Shocks Front

My Videos On YouTube

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Offline Cosmosdan

Re: Radiator fan quit coming on- common problem??
« Reply #20 on: November 10, 2015, 10:09:48 PM »
+1 on the KINGQUAD 700. My battery was always dead. I didn't keep it very long and never found the cause of the drain.
2013 Z6 Trail
Iron Baltic skid plates
UE Boom Speaker mount
RZR 800 Shocks
Mostly stock trail riding
25g. Rollers and A1

2016 Outlander max 570
Too new for mods yet

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Bpraim

Re: Radiator fan quit coming on- common problem??
« Reply #21 on: November 10, 2015, 10:45:13 PM »
Emersonsc- Which switch on yours went out?  The relay behind the glove box, or the temp sensor switch on the radiator? 

The way I checked the one at the radiator was to simply jump (connect a wire) between the two contacts in the plug while it was unplugged from the sensor while the engine was running.  I assume this should activate the fan if the machine is on and running?  There are instructions in the shop manual about jumping the relay which is located under the dash/behind the glove box to test it.  I just didn't want to tear the machine apart that much while I was up north for deer hunting, and with only limited tools on hand.  I would have had to remove the windshield, take the whole hood off, glove box off, etc. just to access the relay.  It would have cost me precious up north hunting hours.

Also there's the fuse in the little fuse compartment by the steering column, that was the first thing I checked.  It looked good but I replaced it anyway, but to no avail.

My next idea was to try jumping the switch at the radiator while the machine is running and at the same time check with the tester if there's power to the fan.  My gut tells me there will not be power there.  It has to be that damn relay...

Then the next question that comes to mind is regarding the relay- if that's what the problem really is.  It is a specialized one which is only available from CFMoto, or is it something that can be purchased online or at an auto parts store?  Perhaps a part made by a more reliable/higher quality manufacturer?  I'd feel better in the summer months with a better quality replacement relay.  It is easy to get to the fuse or sensor on the radiator, but what happens if the relay goes bad when you are out riding 40 miles from civilization?  You have to tear half the machine apart to get to it!

The line coming into fan thermoswitch on rad is always hot as soon as key is turned on, regardless of engine running.
turn key to run and insert a wire bridging the two slots. If fan doesn't engage, try quickly grounding bridge to frame, like striking a match.(if you have a tester please use it) does it spark? If you get a spark then you may need to look at fan. The fans don't fail much , they are Panasonic and can take a beating. If no spark (or light from tester) then you will need to go after the relay.
Remember if your stuck and only the relay is dead, you can unplug the headlight  and jump power from there, turning on the light will engage fan and get you home. Use the high-beam circuit .
Good luck with your hunt.

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emersonsc

Re: Radiator fan quit coming on- common problem??
« Reply #22 on: November 11, 2015, 07:37:04 AM »
Emersonsc- Which switch on yours went out?  The relay behind the glove box, or the temp sensor switch on the radiator? 

The way I checked the one at the radiator was to simply jump (connect a wire) between the two contacts in the plug while it was unplugged from the sensor while the engine was running.  I assume this should activate the fan if the machine is on and running?  There are instructions in the shop manual about jumping the relay which is located under the dash/behind the glove box to test it.  I just didn't want to tear the machine apart that much while I was up north for deer hunting, and with only limited tools on hand.  I would have had to remove the windshield, take the whole hood off, glove box off, etc. just to access the relay.  It would have cost me precious up north hunting hours.

Also there's the fuse in the little fuse compartment by the steering column, that was the first thing I checked.  It looked good but I replaced it anyway, but to no avail.

My next idea was to try jumping the switch at the radiator while the machine is running and at the same time check with the tester if there's power to the fan.  My gut tells me there will not be power there.  It has to be that damn relay...

Then the next question that comes to mind is regarding the relay- if that's what the problem really is.  It is a specialized one which is only available from CFMoto, or is it something that can be purchased online or at an auto parts store?  Perhaps a part made by a more reliable/higher quality manufacturer?  I'd feel better in the summer months with a better quality replacement relay.  It is easy to get to the fuse or sensor on the radiator, but what happens if the relay goes bad when you are out riding 40 miles from civilization?  You have to tear half the machine apart to get to it!

The line coming into fan thermoswitch on rad is always hot as soon as key is turned on, regardless of engine running.
turn key to run and insert a wire bridging the two slots. If fan doesn't engage, try quickly grounding bridge to frame, like striking a match.(if you have a tester please use it) does it spark? If you get a spark then you may need to look at fan. The fans don't fail much , they are Panasonic and can take a beating. If no spark (or light from tester) then you will need to go after the relay.
Remember if your stuck and only the relay is dead, you can unplug the headlight  and jump power from there, turning on the light will engage fan and get you home. Use the high-beam circuit .
Good luck with your hunt.

At least on my unit, the plug going to the thermo switch on the radiator is a ground, not a hot. It wont light a test light if your testing from a chasis ground. The thermo switch is completing the ground circuit for the fan/relay.

Emersonsc- Which switch on yours went out?  The relay behind the glove box, or the temp sensor switch on the radiator? 

The way I checked the one at the radiator was to simply jump (connect a wire) between the two contacts in the plug while it was unplugged from the sensor while the engine was running.  I assume this should activate the fan if the machine is on and running?  There are instructions in the shop manual about jumping the relay which is located under the dash/behind the glove box to test it.  I just didn't want to tear the machine apart that much while I was up north for deer hunting, and with only limited tools on hand.  I would have had to remove the windshield, take the whole hood off, glove box off, etc. just to access the relay.  It would have cost me precious up north hunting hours.

Also there's the fuse in the little fuse compartment by the steering column, that was the first thing I checked.  It looked good but I replaced it anyway, but to no avail.

My next idea was to try jumping the switch at the radiator while the machine is running and at the same time check with the tester if there's power to the fan.  My gut tells me there will not be power there.  It has to be that damn relay...

Then the next question that comes to mind is regarding the relay- if that's what the problem really is.  It is a specialized one which is only available from CFMoto, or is it something that can be purchased online or at an auto parts store?  Perhaps a part made by a more reliable/higher quality manufacturer?  I'd feel better in the summer months with a better quality replacement relay.  It is easy to get to the fuse or sensor on the radiator, but what happens if the relay goes bad when you are out riding 40 miles from civilization?  You have to tear half the machine apart to get to it!

The thermo switch went out. I unplugged the switch, and used a paperclip to jump the two contacts inside the plug, turned the unit back on and the fan started right up. I then ran my test light the a chasis ground and tested one of the leads and as soon as I made contact the fan kicked on again.

As Bpraim said, this is a common problem. I havent run across it yet, but when I went to go order the part from CFMoto last night, they were out, so im guessing this is an issue.

I ordered this:
http://www.ebay.com/itm/181482993074

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Offline st468

Re: Radiator fan quit coming on- common problem??
« Reply #23 on: November 11, 2015, 11:09:26 AM »
Though I still think my problem is either the relay or fan, I want to replace the fan switch just as a preventative measure since it seems it is a common problem with these machines.  I will again test mine by jumping it using a paper clip instead of a wire this time.  Perhaps I just wasn't making a good contact when I last tried? 

I thought I might try to locate a new fan switch here in the city before I head back up north Friday morning.  I've searched the parts stores online parts finders and it seems that all the Civic/Integra/S2000 thermo switchs have ROUND plugs.  My CFMoto has the oval one which was also mentioned in an earlier post in this thread.  Does anyone know the EXACT UPC or part number for the Mishimoto or any other brand part which has the oval plug?  Also is the correct factory-recommended temp for our machines 80 degrees (C)?

This is confusing since the Mishimoto part is supposed to be a direct fit for all the same model cars which appear to have a ROUND connector, at least according to Autozone, etc.  Anyone able to offer some clarification?

Emersonsc- for some reason your link to ebay is not showing a valid item number? 

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emersonsc

Re: Radiator fan quit coming on- common problem??
« Reply #24 on: November 11, 2015, 12:54:50 PM »
well... I ordered mine... i sure hope it fits. Bpraim claims he uses it all the time...

How do you make the round receptacle accept the oval plug?

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Offline st468

Re: Radiator fan quit coming on- common problem??
« Reply #25 on: November 12, 2015, 06:19:09 PM »
Emersonsc-

When you receive your new thermoswitch please post here if it is the round or oval connector.  And if it is indeed the OVAL connector, please post the exact part number or SKU. 

I suppose wiring in a round connector would not be that difficult, but it sure would be nice to get one that's plug and play...

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emersonsc

Re: Radiator fan quit coming on- common problem??
« Reply #26 on: November 13, 2015, 11:33:01 AM »
Well. there went $40... Its Round.


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Offline NMKawierider

Re: Radiator fan quit coming on- common problem??
« Reply #27 on: November 13, 2015, 11:59:04 AM »
Just a thought, you could use the 2.8mm (I think) spade female and male connecters on a jumper there and fill/seal it with electrical grade silicone on both ends. That way you could use it and not waste the factory connector.
2015 Z Force 800 (53") EPS -
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор (Rodin's) Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage | 9.7" GPS | Bandit Springs Rear & Gen-3 Shocks Front

My Videos On YouTube

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Offline st468

Re: Radiator fan quit coming on- common problem??
« Reply #28 on: December 02, 2015, 05:42:02 PM »
Here's an update as to what the problem ended up being.  I just found out today, as my machine has been at the dealer for a week now, and it remains there waiting on the (apparently very slow to respond) CST Tires for warranty coverage for my out of round rear tires.  My cooling problem was fixed though, along with the complete $300-sum dollar first service, including oil and filter change, diff fluid change, valve check/adjustment, etc. 

It was the relay behind the glove box just as I had expected.  Thermoswitch was good, fan is good, etc. 

Now if CST would just get off their asses and take care of the tires!  I'll post the results of that in the other thread I posted here about the tires once I get word. 

I'm anxious to get my machine back and bring it back up north to do some riding!  It is still warm enough to ride and there is no snow yet, so I've really got the itch...  As soon as it finally snows for real it will be time to switch over to the sleds though, but in the meantime it's still 4-wheeler season!

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Offline elmoto

Re: Radiator fan quit coming on- common problem??
« Reply #29 on: April 18, 2016, 10:56:30 AM »
Passenger side about 3"s below the upper hose.

This thread saved me A&% on the trail yesterday. My '05 ZForce 800EX temp shot all the way up. I stopped immediately and noticed the fan wasn't running. Thankfully I had cell phone signal. A quick google search led me here. Got a piece of wire off a guy on the trail, jumped the Thermoswitch connector and my fan was on again. I was thankfully able to drive it back home.  THANKS GUYS!!