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Old 02-18-2013, 09:18 AM
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Unhappy Lost some coolant

I have noticed that if I run @75mph or pull my camper my coolant level drops some. I can run @70 or less unloaded and my coolant level does not change. I have a 05 with 140k, run a coolant filter, untuned, had the egr and oil coolers changed at 94k just before the warranty ran out and then installed the coolant filter. My temps are running about 8-9 degrees apart at that speed. Is this a sign that my heads are lifting?
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Old 02-18-2013, 10:24 AM
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I would start with just checking your degas bottle cap. Mine was only holding <4 psi. New one cost me just over $5 from the local parts store.
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Old 02-18-2013, 10:24 AM
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Do you then have to add coolant, or does it come back to normal on it's own? What are your temps when running at that speed/load? My coolant level varies up and down a bit, but I never add anything, and it averages out OK.

Brian
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Old 02-18-2013, 05:17 PM
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Quote:
Originally Posted by Stealth94rttt View Post
I would start with just checking your degas bottle cap. Mine was only holding <4 psi. New one cost me just over $5 from the local parts store.
Stealth, did you see evidence of puking, I see none but one thing I have always learned is to start with the inexpensive easy fixes first, thanks.
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Old 02-18-2013, 05:20 PM
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Do you then have to add coolant, or does it come back to normal on it's own? What are your temps when running at that speed/load? My coolant level varies up and down a bit, but I never add anything, and it averages out OK.

Brian
Brian I have actually seen it move down and come back up before on the next ride. My temps are usually around 192/200 for coolant and oil at 70 unloaded I think. I will be keeping an eye on it, may pull the camper next month, thanks.
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Old 02-18-2013, 06:06 PM
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Mine does this dissappering act as well, one day it is at the new min line, the next day it looks a half gallon low, but if I add any it pukes it out, till it is right, I just added some the other day against my better judgement, I am betting my next drive she chooches it back out.
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Old 02-18-2013, 06:10 PM
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Mine does this dissappering act as well, one day it is at the new min line, the next day it looks a half gallon low, but if I add any it pukes it out, till it is right, I just added some the other day against my better judgement, I am betting my next drive she chooches it back out.
I did just change my coolant filter and then I added coolant before I drove 800 miles, maybe there was still some air in the system after that and it burped some more.
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Old 02-18-2013, 07:19 PM
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most trucks seem pretty happy about a 1/2" below min line
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Old 02-18-2013, 07:22 PM
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^ Very true! Mine does
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Old 02-24-2013, 05:03 AM
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most trucks seem pretty happy about a 1/2" below min line

That is where I am at now, it is within the min/max lines on the little label that is stuck on there. I am going to leave it alone and see what it does. Thanks.
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Old 02-24-2013, 05:03 AM
 
 
 
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