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Old 05-22-2012, 10:46 AM
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bubbling sound when shut truck off?

just noticed my truck is make a bubbling sound when i shut it off, checked the degas cap and no pucking. It is getting hot in texes about 95 deg so just might be the truck running a lil warmer or having to use the a/c now?
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Old 05-22-2012, 10:59 AM
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Thats not normal. That would be your coolant boiling. What are your temps? If you dont know then that is your first problem to fix. Check Codes? Could be just as simple as needing a new degas cap but its hard to say until we know what your temps are running.
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Old 05-22-2012, 11:34 AM
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don't have a cts so dont know temps but as far as the stock temp gages its reading normal.
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Old 05-22-2012, 11:36 AM
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Stock temp gauge is worthless. Gotta have a monitor for the 6.0
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Old 05-22-2012, 11:37 AM
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just curious why would I need a new degas cap if its not leaking?
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Old 05-22-2012, 11:44 AM
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The system needs a certain amout of pressure in order for it to keep its higher boiling point properties. If it doesnt have that pressure it will boil. Im not saying that is your issue you could have head issues or egr issues but you wont know until you get a monitoring solution. Have you taken off your egr valve and looked to see what it looks like in there? If its wet the you could have a bad egr cooler.
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Old 05-22-2012, 11:46 AM
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Mine did that all the time when my HG were bad..Thats a sign of it. You could be pushing exhaust gases into your coolant causing air bubbles to come up to the top after the trk is off and coolant stops flowing.... Or it could be something else...
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Old 05-22-2012, 11:49 AM
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k thanks for the info guys much appreciated . guess I'm gonna do some more investigating.
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Old 05-22-2012, 11:53 AM
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Lol at this point is ether get a monitoring solution, take it to a shop or live with it till it breaks. There isn't much more to investigate until you have a way to see your temps while driving.
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Old 05-22-2012, 01:39 PM
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Lol

Sent from my droidx using autoguide app
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