Question about John Deere 2008 Gator XUV 4x4 620i

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Gator overheats Engine overheats and coolant flows out of the overflow bottle when pulling a load.

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Too heavy a load

Posted on Dec 28, 2013

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1 Answer

How do you flush cooling system on a polaris pro rmk?


There are two "recommended" methods.. both are used...

1. Stuff a 1/2" hose down the coolant bottle and siphon it out. Then remove the bottom hose and repeat the process.
Cleanest way i've found.
2. From Canada: Take your wet/dry shop vac. clean it really good. crack the hose connection at the head and thermostat while you hold the end of the shop vac there, and it will suck out all the coolant, and no mess in the engine bay.

Apr 09, 2017 | Polaris ATV

1 Answer

I have a gator xuv 4x4 620i and it won"t start but makes a clunking sound instead


check starter bolts pull plug and do a compression test clunk in engine never good possible spun rod bearing

Jul 27, 2016 | John Deere 2010 Gator XUV 4x4 620i

1 Answer

2015 sportsman 570. On trails first time today. No problems all day but loaded on truck and reservoir bottle is empty. See no coolant on ATV or on ground. What could it be?


check all hose clamps are tight, pressure test the cooling system as there may be a hole punched in the radiator or tank
an empty reservoir indicates a fault but the radiator cap is the place to check for coolant level as the reservoir will only get empty if the system needs water on cooling down

May 22, 2015 | ATVs

1 Answer

Have a 2011 polaris 6x6 800 that overheats every time I use it. The coolant will come out the over flow.


The most common causes of a water cooled engine overheating are (1) poor circulation of cooling fluid (bad water pump or stopped up radiator); or (2) inadequate air flow cooling (bad cooling fan); or (3) compression gases entering the cooling system (leaking head gasket or cracked block or head). The first check is to see if air is in the cooling fluid (small bubbles appearing in top of radiator or coolant reserve tank). If so, then #3 is the problem. The second check is to see if the cooling fan (s) is running properly (can feel air flow on output side?). If not check wiring and/or replace fan (#2). The last step is to drain the radiator and engine (turn over engine to allow water pump to empty the block). If additional cooling fluid does not drain out the radiator drain port, the water pump is defective. If the water pump does empty the block, then flush the system with a good flushing agent. Follow instructions on flushing agent bottle. Drain out the flushing agent and re-fill radiator and block with clear water. Run engine as per instructions on flush agent bottle. Drain system again and re-fill with antifreeze (50%) and water (50%). If vehicle is located in a very cold climate, then increase the antifreeze % up to 75% (25% water). Remember, not only does antifreeze help to keep water from freezing, but it also helps to increase cooling ability.

Feb 06, 2015 | Polaris 2011 Ranger 800 6x6

1 Answer

How do I deristrict a John Deere gator


sorry but its not recommended, they are set so not to over rev engine causing damage, it will void your warranty and end up costing alot of money to replace engine.

Oct 06, 2014 | John Deere 2014 Gator XUV 4x4 855D Power...

1 Answer

How do i adjust the throttle position switches on a john deere gator 620i


YOU DONT! Factory specs are need to test and set it!

First off what is the problem you are having????

All the TPS does is switch from one timing curve to the other on the cdi, and is also connected to the fuel management computer to tell it when to increase fuel delivery.

If you are having running problems start with old fuel, fuel pump pressure, and last if you have modified the airbox or exhaust in any way it will run like crap! On fuel injection you have to get a tunable fuel management computer when increasing air-flow or exhaust flow. The fuel injection is set from the factory based on the OEM parameters.

How many hours/ miles on your unit?

Have the valves been adjusted if it has over 200 hours of use?

are there any codes being flashed on display when key is turned to on position but not running?

Aug 29, 2014 | John Deere 2008 Gator XUV 4x4 620i

1 Answer

John deere gator schematics


sounds like you dont have a good ground to solenoid on gator

Aug 24, 2014 | John Deere 2009 Gator Traditional TH 6x4...

2 Answers

"engine hot" light flashes


Get codes from the dianbostic computer reader at Pep Boys/ Autozone etc. or the dealer.
This should tell you which sensor is out

Mar 19, 2014 | Polaris 2004 Sportsman 400

1 Answer

Where is the dipstick


OOHHH you made that too easy....
If there is not one on the oil fill plug, there should be a (hex headed?) screw below the fill hole somewhere... remove it and oil should flow/trickle out. To be sure, once you have checked this, jack up the side with the screw, let the oil flow to the other side, then remove it again and NO oil should flow out!

Feb 14, 2014 | John Deere 2012 Gator XUV 4x4 550

1 Answer

Four wheeler


You will have to get the cooling fan working before you look any further. It may be best to have a coolant system pressure test and a compression test done to eliminate engine fault also

Jul 28, 2013 | ATVs

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