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post #1 of 11 (permalink) Old 12-09-2012, 12:33 AM Thread Starter
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Temp light - 02 XC 600

After running today i notice the temp light was coming on when i rev the sled. I'm confuse on why the light would be coming on only when I hit the throttle, and not at idle? Sled is running on a stand in about 40 - 45 degrees and running for 5 to 10 minutes.

Here is everything that's been checked:
- checked thermostat (working)
- water pump - have coolant flowing into the coolant bottle in a steady stream from the head until the thermostat opens.
- Bled the system cooling system.
- Both heat exchangers are warm/hot.


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Last edited by XLT Spartan; 12-09-2012 at 12:52 AM.
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post #2 of 11 (permalink) Old 12-09-2012, 12:50 AM
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I remember hearing that the temp sensor goes bad on those sleds, causing the light to come on. If everything else checks out good, that could be the problem.


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post #3 of 11 (permalink) Old 12-09-2012, 09:38 AM Thread Starter
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Quote:
Originally Posted by meburdick View Post
If, when the temp light comes on, the heat exchangers are "hot" (not just warm), then you're definitely overheating the motor.

The air temp is well above what that motor is jetted and adjusted for, so it will run less than optimal. If you're also overheating the motor, you're exacerbating the issue.
Shouldn't the light stay on if it was overheating? Not just when I'm on the gas?


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post #4 of 11 (permalink) Old 12-09-2012, 11:40 AM
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The temp sensor is probably bad, that's why it only comes on when you rev it up. If it was overheating it would stay on like you said. When you rev it up, your giving it more power, kinda like how your headlight gets brighter when you rev it.


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post #5 of 11 (permalink) Old 12-09-2012, 02:23 PM Thread Starter
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I drained the fuel because I read this could be a DET indicator, but no change. The heat exchangers are very hot to the touch as well as the hoses. How warm do they typically get on these sleds? Still, light is only coming on after 10 - 15 mins on rev up on a stand.


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post #6 of 11 (permalink) Old 12-09-2012, 02:28 PM
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Might have air bubbles in the system. Know anyone that has an airlift? Is your coolant mixed correctly? If not, it can play with temps

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post #7 of 11 (permalink) Old 12-09-2012, 03:06 PM Thread Starter
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I just went to load it into the trailer to bleed the system at more of an angle, an now the temp light is on and staying on. Once she cools I am going to bleed it again.

How would I know if it was the water pump?


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post #8 of 11 (permalink) Old 12-09-2012, 09:14 PM Thread Starter
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I let the sled sit for a while, but the temp light is still staying on. So confused and frustrated. Snow is starting to fall.


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Last edited by XLT Spartan; 12-09-2012 at 09:45 PM.
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post #9 of 11 (permalink) Old 12-10-2012, 06:18 AM
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Put it on the trailer with the front in the air... Take the coolant bottle cap off and let it run. Also, crack the bleed screw by the thermostat housing in case you have air in there.

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post #10 of 11 (permalink) Old 12-10-2012, 06:18 AM
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Also, pull the recoil off and check your water pump belt.

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post #11 of 11 (permalink) Old 12-10-2012, 02:13 PM
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Tip the sled at a 45 angle and hold it while running. This puts the coolant bottle at the highest point in the cooling system and helps any air escape if u still have air in the system.

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