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Old 07-26-2013, 10:45 PM
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Loosing coolant

I had my truck studded around February of this year. My head gaskets were not leaking when i had it studded. I'm loosing coolant and can't find a leak any where. I thought I had a crack in my degas bottle so I replaced it and I'm still loosing coolant. Its not puking out of the degas bottle. Is there any thing it could be other than blown head gaskets or a cracked head?
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Last edited by 05f250harley; 07-26-2013 at 10:56 PM.
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Old 07-27-2013, 12:28 AM
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When testing are you duplicateing the conditions as close as possible to when the event occurs. I mean if your leak only shows up after running for 3 hours testing after running only 20 minutes may not show you anything
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Old 07-27-2013, 02:08 AM
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Its possible to have a leaking egr cooler. Do you have any way to check the cooling system pressure?
You can put a gauge in the coolant filter at the extra outlet that has a plug in it.

I have one in mine and have noticed the pressure coming up over time. I am going to change out the gauge with a new one, hoping the heat has taken its toll on the borden tube softening it up and getting higher readings then it should be.
Used to see 4-5 psi and lately its up around 12-13 psi.

You have it going somewhere though and the egr cooler is a likely spot.
You can pull the egr valve and look in manifold and see if there is moisture in there. If so its most likely the cooler.
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Old 07-27-2013, 02:57 AM
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Forgot to mention I don't have an egr cooler

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Old 07-27-2013, 03:32 AM
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I know you say you can't find a leak, but the most common place is where the hose coming from your oil cooler attaches to your EGR delete. Check those clamps. If that is ok, get a coolant pressure tester and pump the system to 15-17 psi and start watching and listening. Park on a dry area.
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Old 07-27-2013, 06:10 PM
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Water pump is prob leaking but not enough that its going to make a puddle. Look at the water pump with a long handled mirror and check for crusty dried coolant around the bottom of it.


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Old 07-28-2013, 06:20 PM
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i parked it last night on a concrete drive way and when i went to go leave this morning there was a big puddle of coolant. it was on the passanger side dripping from the same area that it drips from the a/c. I drove from atlanta ga back to greensboro nc today and i stopped in columbia and noticed that i had puked out the degas bottle.
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Old 07-28-2013, 06:25 PM
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Quote:
Originally Posted by 05f250harley View Post
i parked it last night on a concrete drive way and when i went to go leave this morning there was a big puddle of coolant. it was on the passanger side dripping from the same area that it drips from the a/c. I drove from atlanta ga back to greensboro nc today and i stopped in columbia and noticed that i had puked out the degas bottle.
Need to test coolant pressure. With it puking it sounds like it may be the HG's. Did they do the heads correctly when you had the truck studded or did they just throw them back on with new gaskets and studs?! What kind of HG's did they use? Not sounding good to me

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Old 07-28-2013, 06:46 PM
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coolant problems

I have been meaning to check the pressure but havent had time to mess with it. When it was studded they used oem gaskets and sent the heads off to be checked.

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Old 07-30-2013, 05:42 PM
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It hasnt puked any more. I think my cap was loose. I have been to several parts stores and cant find a low pressure gauge. Were can i get one?
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