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Need help please. I have a 2018 Maverick Max Xmr. I have replaced the fan, thermostat, and burped the radiator. It’s almost going into limp mode sitting at idle for 20 minutes or less. Any idea what it could be.
 

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Welcome from Tucson AZ. First why would you let it idle for 20 minutes? Have you checked the radiator fins for being clogged with mud? Sounds like an air bubble. Did you pull the radiator cap, and see if you have flow when it starts warming up?
 

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I’m letting it sit and idle to see if it’s still running hot. Radiator is clean. Pulled it out last weekend and cleaned it. I’m going to bleed the system again today. I will check again but it seems to have flow. Thank you for your input.
 

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If it's clean, and has flow, I'm think air bubble. Quick question, has it always been this way? Or has it just started recently since it's an 18?
 

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you can inspect impeller from rear engine by pulling the hose and nipple off engine and confirm its spinning. You can also grab both front coolant lines and make sure you have heat on both hoses? I have even pulled the drivers side upper hose off with car running to check for actual flow, not just a trickle either.

good luck
 

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It just started. I didn’t use it very much through the winter and when spring came around, my first ride, the fan was barely moving. Replaced the fan and been chasing down the problem every since. When I replaced the fan, the coolant had never been changed.
 

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you can inspect impeller from rear engine by pulling the hose and nipple off engine and confirm its spinning. You can also grab both front coolant lines and make sure you have heat on both hoses? I have even pulled the drivers side upper hose off with car running to check for actual flow, not just a trickle either.

good luck
I will give that a shot. I’m getting heat to upper hose for sure. I need to check the bottom hose. I will try that this afternoon.
 

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also have you confirmed the cooling fan is coming on?
 
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