Quantcast
Jump to content

Challenger 700 help needed. Rad fan won’t turn on.


JakeK

Recommended Posts

First time poster - new member. Most issues between my pioneer 700 and Challenger 700 I’ve been able to fix without issue. This problem is a different story. Have a 2016 Challenger 700 that overheated due to cooling fan not coming on. Changed both temp sensors on thermostat housing as well as radiator temp sensor. (Being that unit overheated I teplaced to be safe) Put power to fan to verify operation - works great. Checked all fuses, connections ect. No issues found. Verified coolant level and air bled out - all good. Using a temp gun I Can see temps climb to 210 at thermostat housing and 195 at rad at sensor location and fan won’t turn on. Any help on where to check or any wiring schematics for this unit ?

Link to comment
Share on other sites

Rhino has a snubber diode in series with power feed from IGN switch.  Clones also have same.  The diode OPENS.....thus no power to FAN.  Test by jumping in 12V when radiator warm.  If thermo switch is good and no air in coolant....have fan.  The bad part.....the diode is part of the wiring harness.  Hard wire the "jumper" IGN switch feed and don't waste time looking for diode.  Post back results.

Link to comment
Share on other sites

Went back and verified your diag and that is the issue. Thank you. Got tired of working through the excess and unnecessary method of controlling the fan. Ended up ordering a 22mm rad hose sensor adapter with a 175 degree sensor which I’ll install to piggy-back the factory system that seems to constantly give issues. The $65 is worth the insurance if the factory components fail again.

Link to comment
Share on other sites

  • 8 months later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Topics

    • By Buddee
      Put a new carb on the 500 to replace the leaking OE one.  Machine idles fine and mid and top end runs great.  It tends to have a hesitation right from the start - bottom end.   Thinking it may be the air/fuel screw??  I didn't do anything with the carb out of the box and is it direct replacement for my machine.  Of interest is the manual choke doesn't seem to work very good now.... wonder is it getting too much air?
       
      Any help appreciated!
       
       
    • By great8redsfan
      Okay folks. I have a low power issue. Been like this for a few years. Place I work at bought 3 and all have lost most of the pulling power.  They gave them away after local shop worked on one for 3 months and it had great power for about 1 month and then crap. They replaced throttle body, fuel injector, spark plug and IAC motor. Seat belt switches have wires cut and left open so no seat belt warning light anymore. It revs to 6k rpm in neutral but when put in gear and take off in low it just doesn’t seem to want to go anymore. Running 93 octane fuel with Stabil.  Any ideas greatly appreciated. I dont have a scan tool but no codes on dash. If held to floor it pops a little and runs almost 5K rpm but if I let off pedal about an inch it smoothed out and revs up to 6k rpm. 
    • By Mark M
      Hello, Hope someone can help driver side cv axle broke anyone know of aftermarket ones you can get, I have 40 Hours on the machine and don't want to pay 450.00 for a new one from cub cadet but I can't find anything after market 
    • By JimS409
      I picked up this Hisun 700cc for a good deal. no crank no start unit 1900 miles on it. Put a new battery and starter solenoid fired right up but sounded rough some kind of rattle/clunk noise.  Does anyone know what this noise could be? Couldn't get a better video of it running as i don't want to risk doing more damage. Drained the oil it looks good no metal in it. 

      445374820_7315077208620291_6073155782020130975_n.mp4  
    • By buckrub
      Hey guys! Newbie here. I'm an old man who's better with plowing a mule (4-legged kind) than these newfangled beasts. I, and a friend of mine, just bought new Coleman sxs and are having to finish the assembly. I've been reading on this site and I'm falling on the mercy of you experts. The only way I'm an expert is that an "ex" is a has been, and a spurt is a drip under pressure. LOL First off, the 2 buggies have no ignition switches. They seem to mount on the dash, not the opening in the steering wheel shaft cover, so we ordered new ones that are supposed to fit. They are 8 inches long, and have a 4-wired white plugin which is slightly rectangled when looking at the end of the plug. The trouble is there's nothing to plug into. There is a three-wire grey plug close enough to reach the four-wire plug, but of course, they are not compatible. 
      Secondly, the blinker, light, ect. unit on steering wheel just spins around when touched. I see no way in heaven or earth to secure it. I've looked at a diagram on the Powersports site, but can't detect how it mounted. Fellows I'd be so grateful for any help with this. Me and my mule will even plow your garden for free, for your help. LOL 
       
×
×
  • Create New...