Coolant Degas Bleed down time? - Ford Powerstroke Diesel Forum
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Old 08-20-2011, 04:35 AM
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Coolant Degas Bleed down time?

Just a weird question after my truck sat all night i cracked the degas bottle cap and there was no pressure on it? I swear a few weeks ago it held pressure all night. Am i just worrying about nothing? FYI i did the ELC coolant flush last weekend as well.

My delta's are in check and no coolant loss. Just curious if it should hold pressure or if i possibley have a loose hose clamp causing it? No leaks that i can see

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Old 08-20-2011, 07:01 AM
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Might need a new cap.
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Old 08-20-2011, 07:25 AM
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^^^^ agree. Here is a picture of old and new caps. Old on the left.
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Coolant Degas Bleed down time?-user146250_pic2325_1235260282_thumb.jpg  
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Old 08-20-2011, 10:00 AM
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I replaced my degas bottle last year when it was leaking from small cracks on the bottom. I didn't change my cap, but now that I see the pics I definitely have the old cap with white label.

Try changing the cap, there not very much $ and see it that works.
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Old 08-20-2011, 03:50 PM
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I checked and i do have the new degass cap,I also found where the spring clamp on my upper house wasnt as tight as i think it should be,When you squeezed the hose you could see a small spot of coolant bulge out. I replaced that clamp with a regualr hose clamp and tightened her down. I also put about 100 miles on my truck today and some of which was pretty tough with the ac on and 90 degree temps. My degas bottle was down about 1/4" from what it was this am. No leakes to be seen anywhere,Truck runs great and the oil is clean. I am thinking i am still burping some air out from last weeks ELC coolant swap? Sound like a legitimate reason? I have put maybe 150 miles on since the flush with 100 of that being today
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Old 08-20-2011, 05:07 PM
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This probably goes with out saying, But just for fun, the fill mark is the bottom mark on the degas, not the top one. And leave it just a tad lower than that bottom line.

And yes you could have had a lower level due to the coolant change. You should have it balanced out now.
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Old 08-20-2011, 05:13 PM
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Quote:
Originally Posted by amdriven2liv View Post
This probably goes with out saying, But just for fun, the fill mark is the bottom mark on the degas, not the top one. And leave it just a tad lower than that bottom line.

And yes you could have had a lower level due to the coolant change. You should have it balanced out now.
Thank you and yes i have been using the lower line for the fill. Since i have had the truck it likes the coolant to sit about a 1/2" below that line. It never moved before i did the flush and added the Sinister Coolant filter so hopefully it levels out now. I am doing the new oil cooler/EGR Delete on monday as well as the fuel spring and Banjo's so i hope i can take some time and just enjoy the truck for a bit after that
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